Illustrated map titled “Glastonbury Landscape: Layers Across Sacred History,” showing geological and historical sites.

The Isle of Glass: A Chronicle of Glastonbury’s Sacred and Sepulchral Legends

An Archival Study in the Layering of Myth, Faith, and the English Landscape

Illustrated map titled “Glastonbury Landscape: Layers Across Sacred History,” showing geological and historical sites.
An illustrated map layers Glastonbury’s prehistoric, Celtic, medieval, and modern landscapes across one sacred setting.

There are places upon the earth where the membrane between the recorded and the remembered has worn thin, where the accumulated weight of human longing has pressed itself into soil and stone until the ground itself seems to exhale narrative. Glastonbury, that low and haunted rise in the Somerset Levels of southwestern England, is foremost among them. To the discerning collector of vanished histories, it presents not a single legend but a palimpsest—a manuscript scraped clean and rewritten across two millennia, wherein the faded undertext of pagan reverence bleeds perpetually through the confident script of Christian triumph. This chronicle concerns that layering: the sedimentary accumulation of belief upon a single unremarkable hill and its attendant marshland, and the melancholy truth that what we call the history of Glastonbury is, in the main, the history of what human beings have needed it to be.

The Drowned Country: Landscape as First Author

Before the monks, before the myths, before the name itself, there was the water.

The Somerset Levels are a coastal plain of extraordinary flatness, a reclaimed country lying scarcely above the level of the sea and, for much of recorded prehistory, frequently below it. In the centuries before systematic drainage, the winter rains and the tidal surge of the Bristol Channel transformed this expanse into a vast inland fen—a shifting geography of reed bed, sedge, and standing water from which certain higher grounds emerged as islands. The greatest of these was the hill now crowned by the ruined tower of St. Michael, which rises with startling abruptness from the surrounding flatness: Glastonbury Tor.

It is essential, in any rigorous field study of this place, to begin with the landscape, for the landscape is the first and most honest author of the legend. A traveler approaching across the drowned levels in the Iron Age or the early medieval period would have witnessed the Tor materialize from the morning mist as though rising from beneath the water itself—an apparition of solid ground in a liquid world, wreathed in the low fog that still gathers there on autumn mornings with a persistence that borders on the theatrical. The very topography insists upon significance. A conical hill emerging from a watery waste is, in the grammar of the human imagination, an island of the otherworld, a place set apart, a threshold.

The etymology of the place confirms this instinct. The Brittonic-speaking peoples who inhabited the region before the Saxon advance are believed to have known the area as Ynys Witrin, rendered in later Welsh sources as the Isle of Glass. The Saxon name that supplanted it, Glæstingaburh, likely refers to a tribal group, the Glæstingas, yet the older resonance of glass—of transparency, of the shimmering surface of water, of the perilous permeability between worlds—clung to the site and was never entirely dislodged. To speak the name Glastonbury is to invoke, however faintly, an island of glass rising from a sea of reeds, a description at once meteorologically accurate and mythologically pregnant.

The archaeological record substantiates a human presence of considerable antiquity. The celebrated Lake Villages excavated near Glastonbury and Meare at the close of the nineteenth century revealed sophisticated Iron Age settlements constructed upon artificial platforms of timber, brushwood, and clay, raised above the marsh in a manner that speaks to a people wholly adapted to an amphibious existence. These communities, flourishing in the centuries before the Roman conquest, left behind a wealth of material culture—pottery, weaving implements, worked bronze, and the delicate evidence of daily life lived upon the water. Whatever spiritual significance the wetland held for these people has largely gone unrecorded, yet the persistent human instinct to venerate the boundary between land and water, so well attested across Celtic Europe, suggests that the marsh was regarded as sacred long before any monk set foot upon the island.

Thus the melancholy that pervades Glastonbury is not merely a literary affectation imposed by later romantics. It is, in some measurable sense, a property of the place itself: a low country of mist and standing water, of ground that was for centuries neither wholly land nor wholly sea, a liminal terrain that the human mind has always found conducive to the manufacture of legend.

The Terraced Hill: An Enigma in Earth

The Tor itself demands particular scrutiny, for it presents the most tangible and simultaneously most inscrutable of Glastonbury’s mysteries. Its slopes are girdled by a series of symmetrical terraces, seven concentric rings that spiral around the hill in a manner too regular to be casually dismissed as the product of chance. These terraces have provoked speculation of remarkable persistence and remarkable variety.

The prosaic explanation, favored by many agricultural historians, holds that the terraces are the vestiges of medieval strip-farming—lynchets formed by generations of ploughing along the contours of the steep slope. This interpretation possesses the considerable virtue of plausibility, for such terracing is documented elsewhere in the English landscape and requires no recourse to the esoteric.

A second, more romantic school of thought contends that the terraces constitute the ruined remains of a vast three-dimensional labyrinth, a ceremonial processional path of Neolithic or Bronze Age origin by which pilgrims might ascend the sacred hill in ritual spiral. Proponents of this view note the resemblance of the terrace pattern to the classical labyrinth design attested across the ancient world, and argue that the ascent of the Tor was itself an act of devotional passage, a winding journey toward the summit that mirrored an interior journey of the spirit.

The scholarly consensus remains cautious, and rightly so; the evidence permits no certainty. What may be stated with confidence is that the Tor was regarded as a place of significance from a period of profound antiquity, and that its terraced form has, whatever its origin, contributed materially to its reputation as a landscape shaped by intention rather than accident. To the collector of historical enigmas, the terraces offer a perfect specimen of the Glastonbury phenomenon: a physical feature of genuine mystery upon which successive generations have inscribed their competing interpretations, each reflecting the preoccupations of its age.

Upon the summit stands the roofless tower of the Church of St. Michael, sole survivor of a medieval church destroyed in the great earthquake of 1275 and subsequently rebuilt, only to fall into ruin following the dissolution of the monasteries in the sixteenth century. The dedication to Michael, the archangel who casts down the dragon and who is so frequently invoked at high and liminal places across Europe, is itself instructive. It represents the Christian appropriation of a site whose sanctity long predated the faith—the placing of the dragon-slayer upon a hill that the older imagination had likely regarded as a place of chthonic and serpentine power.

The Lord of the Hollow Hill: Gwyn ap Nudd and the Otherworld

Here we descend into the older stratum, the pagan undertext that the Christian overwriting could obscure but never entirely erase.

In the mythological traditions of the Brittonic peoples, preserved in the Welsh sources though referring to a shared inheritance of the western British world, the Tor was identified as an entrance to Annwn—the Otherworld, the realm of the dead and of the immortal fair folk. Its lord was Gwyn ap Nudd, a figure of formidable and ambiguous power. Gwyn, whose name signifies “white” or “blessed,” was reckoned a king of the Tylwyth Teg, the fair family, and a psychopomp who gathered the souls of the fallen. In the medieval Welsh tale of Culhwch and Olwen, he is described as one in whom God had placed the energy of the demons of Annwn, lest the world be destroyed—a being of such terrible potency that his restraint was itself a mercy to creation.

The Tor, as the hollow hill wherein Gwyn held his court, was thus a threshold to the land of the dead, and the surrounding marsh a moat of water separating the realm of the living from the perilous country beyond. This conception aligns with a pattern observable throughout Celtic mythology, wherein the Otherworld is reached by crossing water and is frequently located upon or beneath an island—a pattern that finds its most famous expression in the legend to which we shall shortly turn.

The persistence of Gwyn ap Nudd in the folklore of the region is remarkable. A tradition recorded in the medieval life of Saint Collen preserves an encounter between the ascetic and the fairy king that illuminates, with unusual clarity, the process by which the older faith was subordinated to the new. Collen, dwelling as a hermit upon the slopes of the Tor, is summoned to the palace of Gwyn ap Nudd, which he finds to be a place of dazzling splendor, filled with sumptuous feasting and courtiers in livery of red and blue. Offered food by his host, the saint refuses, knowing the peril of consuming the fare of the Otherworld, and casts holy water upon the assembled company—whereupon the entire glittering court vanishes utterly, leaving the hermit alone upon the cold and grassy hillside.

The narrative is, on its surface, a triumphalist parable of Christian power over pagan illusion. Yet to the discerning student of these matters, it preserves something far more valuable than its intended lesson: it is a genuine vestige of the older belief, a fossil of pre-Christian conviction embedded within the very text designed to refute it. The court of Gwyn ap Nudd is described with a specificity that betrays real tradition, and the survival of the legend attests to the tenacity with which the memory of the hollow hill and its immortal lord endured in the popular imagination, generation upon generation, long after the marsh had begun to yield to the plough.

Avalon: The Island of Apples and the Sleeping King

We arrive now at the legend that has, above all others, fixed Glastonbury in the imagination of the world: the identification of the Isle of Glass with Avalon, the fair island of Arthurian romance, and the claim that beneath its soil lies the body of the once and future king.

The name Avalon derives, in all likelihood, from the Brittonic word for apple—Insula Avallonis, the Isle of Apples, a paradisiacal island of the western sea where the fruit grew without cultivation and where the wounded and the worthy might find healing. Geoffrey of Monmouth, whose Historia Regum Britanniae, composed around 1136, did more than any other single work to shape the medieval conception of Arthur, records that the mortally wounded king was borne away after the catastrophic Battle of Camlann to the Isle of Avalon, there to be tended by the enchantress Morgen and her sisters. In Geoffrey’s later and more explicitly mythological Vita Merlini, Avalon is described as the Fortunate Isle, a place of perpetual abundance where the crops grow of their own accord and the inhabitants live for a hundred years and more—a description that owes a manifest debt to the Celtic conception of the Otherworldly island, that same tradition which located the realm of Gwyn ap Nudd beneath the Tor.

The crucial point, for any rigorous chronicle, is that Geoffrey of Monmouth does not identify Avalon with Glastonbury. In his account, and in the wider Arthurian tradition of the twelfth century, Avalon remains a place apart, an island of enchantment untethered from any earthly location. The identification of Avalon with the Somerset abbey was a later development—and one that emerged, tellingly, from circumstances of considerable material interest.

The Discovery of the Grave: A Study in Sacred Commerce

In the year 1184, a catastrophic fire consumed the great abbey of Glastonbury, destroying the ancient church and much of the monastic complex and depriving the community of its principal source of revenue at the very moment when the costs of reconstruction were most acute. The abbey, which had ranked among the wealthiest and most venerable religious houses in England, found itself in dire financial extremity.

It was in this context—and the coincidence is one upon which the objective historian is obliged to remark—that the monks of Glastonbury announced, in the year 1191, a discovery of extraordinary consequence. Excavating in the ancient cemetery to the south of the Lady Chapel, they claimed to have unearthed, at a considerable depth, a great hollowed oak coffin containing the bones of a man of remarkable stature and, alongside him, the smaller bones of a woman with a tress of golden hair that crumbled to dust when touched. Above the coffin, they reported, lay a leaden cross bearing a Latin inscription identifying the occupant: Here lies buried the renowned King Arthur in the Isle of Avalon.

The chronicler Gerald of Wales, who claimed to have handled the cross and examined the bones, recorded the discovery in detail and reported that the abbot showed him the shin bone of the king, which when set against the leg of the tallest man present extended a full three fingers above his knee. Gerald further relates that the identification of Glastonbury with Avalon was thereby established, and offers etymological and traditional arguments in its support.

The modern student regards this discovery with a skepticism that the medieval chronicler did not share, and the reasons are not difficult to enumerate. The timing—a mere seven years after a devastating fire that had crippled the abbey’s finances—invites the gravest suspicion. The pilgrimage trade was the economic lifeblood of a medieval religious house, and the possession of the grave of Arthur, the greatest of British kings, represented an incomparable attraction for the pious traveler. Furthermore, the discovery served a political function agreeable to the Angevin monarchy, for a demonstrably dead Arthur could no longer serve as the messianic hope of the Welsh and Cornish, whose resistance to English domination drew sustenance from the prophecy of the king’s return. The inscription upon the cross, moreover, employed a form of lettering that some scholars have judged archaizing—a deliberate imitation of ancient script rather than genuine antiquity.

Yet the objective chronicler must resist the temptation to render a verdict of simple fraud, for the matter is more subtle than mere fabrication. It is entirely possible that the monks did indeed unearth an ancient burial of genuine antiquity—the cemetery was of great age, and the discovery of early graves would occasion no surprise—and that they interpreted their find through the lens of a conviction they sincerely held. The medieval mind did not draw the sharp line between pious belief and material evidence that the modern historian insists upon; the discovery of ancient bones in a place already associated with Arthur through the labyrinthine channels of oral tradition may have seemed, to the monks, less an invention than a confirmation. What may be stated with certainty is that the identification of Glastonbury with Avalon, whatever its truth, was fixed permanently in the European imagination from the moment of the 1191 discovery, and that the remains—reinterred with great ceremony before the high altar in 1278 in the presence of King Edward I and Queen Eleanor—became the object of veneration until the dissolution of the abbey swept away the shrine and scattered the bones to oblivion.

To the collector of historical artifacts, the tale of the grave of Arthur offers an object lesson of surpassing richness: a demonstration of the manner in which economic necessity, political expediency, and genuine religious conviction may combine to manufacture a legend of such durability that it outlives by centuries the institution that produced it, and the physical evidence upon which it purported to rest.

The Coming of the Grail: Joseph of Arimathea and the Holy Thorn

If the Arthurian legend endowed Glastonbury with the melancholy grandeur of the sleeping king, a second cycle of tradition invested it with a sanctity of even greater antiquity and daring, claiming for the Somerset abbey nothing less than the status of the cradle of British Christianity.

The tradition holds that Joseph of Arimathea, the wealthy disciple who provided the tomb for the crucified Christ, journeyed to Britain following the Passion, bearing with him the Holy Grail—variously conceived as the chalice of the Last Supper or as two cruets containing the blood and sweat of the Savior. Arriving at Glastonbury, weary from his travels, Joseph is said to have thrust his staff into the ground upon the hill now called Wearyall, whereupon it took root and blossomed—becoming the Holy Thorn, a hawthorn of the rare variety that flowers not only in spring but also at midwinter, in miraculous commemoration of the Nativity.

Joseph, according to the developed legend, then founded upon the island the first Christian church in Britain, a humble structure of wattle known as the Vetusta Ecclesia, the Old Church, dedicated to the Virgin Mary and established, by this reckoning, within a generation of the Crucifixion itself. This claim, had it been credited, would have rendered Glastonbury the most ancient Christian foundation in the western world, senior even to the great churches of the continent, and the abbey did not fail to press the advantage that such a distinction conferred.

The historical evidence for the Joseph legend is, it must be stated plainly, entirely absent from the early record. The association of Joseph of Arimathea with Glastonbury does not appear in the writings of William of Malmesbury, who composed a history of the abbey around 1130 and who, had such a tradition existed in his day, would assuredly have recorded it. The Joseph material was interpolated into later copies of William’s work and elaborated in the thirteenth century, achieving its full flowering in the works of John of Glastonbury in the fourteenth. The legend, in short, bears every mark of a later invention, developed—like the Arthurian material—in service of the abbey’s prestige and its competitive standing among the great religious houses of the age.

Yet the legend of the Holy Thorn possesses a peculiar and stubborn root in observable fact, and it is here that the field study grows most intriguing. There did indeed grow at Glastonbury a hawthorn of the Crataegus monogyna variety known as Biflora, which does in truth blossom twice yearly, in spring and again around the time of the winter solstice—a botanical peculiarity of Levantine origin, unusual in the English landscape and entirely capable of nourishing a legend of miraculous flowering. The original thorn was destroyed by Puritan iconoclasts during the Civil War of the seventeenth century, who regarded its veneration as rank superstition, yet cuttings had been propagated, and descendants of the tree survived to furnish the reigning monarch, by an enduring custom, with a sprig of winter blossom each Christmas. The persistence of this observance into the modern era, and the periodic vandalism suffered by the surviving thorns in our own century, attest to the extraordinary tenacity of the tradition and to the manner in which a genuine botanical curiosity became the anchor for a legend of the founding of British Christianity.

The Grail itself acquired a further and more localized manifestation in the tradition surrounding the Chalice Well, a spring at the foot of the Tor whose waters, heavily charged with iron oxide, run a deep and arresting red. The color, which stains the stone of the well’s channels a rusty crimson, was readily interpreted as the blood of Christ, and the well became associated with the buried Grail, said by some accounts to lie concealed within or near its waters. That the red coloration admits of a wholly mineralogical explanation does not diminish the power of the association; indeed, it exemplifies the characteristic Glastonbury alchemy, whereby a natural phenomenon of genuine peculiarity—the twice-blooming thorn, the blood-red spring, the mist-wreathed hill—is transmuted by the pressure of human longing into the vessel of sacred narrative.

The Perpendicular Sorrow: The Abbey in Splendor and Ruin

The great abbey that grew upon the island was, in the centuries of its glory, among the most magnificent religious foundations in Christendom. Enriched by pilgrimage, by royal patronage, and by the accumulated bequests of the pious, it rose in successive campaigns of building to a scale and splendor rivaled by few churches in England. The reconstruction that followed the fire of 1184 produced work of the highest quality, and the abbey at its zenith commanded vast estates across the west of England, its abbot ranking among the greatest magnates of the realm.

The end came with a suddenness and a brutality that lend the ruins their peculiar and abiding melancholy. In the great dissolution of the monasteries undertaken by King Henry VIII, Glastonbury was among the last and greatest houses to fall. The abbot, Richard Whiting, an elderly man who had governed the community for decades, refused to surrender the abbey to the Crown. In the autumn of 1539 he was arrested, tried upon charges that appear to have been a pretext, and condemned. Upon the fifteenth of November in that year, the aged abbot was dragged upon a hurdle to the summit of the Tor—the sacred hill of Gwyn ap Nudd, of St. Michael, of ten centuries of accumulated devotion—and there hanged, drawn, and quartered, his severed head fixed above the gate of the abbey he had defended and his quartered body dispatched to be displayed in four towns of the region.

The abbey was stripped, its lead and glass and treasure carried away, its fabric quarried for building stone by the surrounding country until only fragments remained: the shattered arches of the transept crossing, the roofless shell of the Lady Chapel raised upon the site of the ancient wattle church, the isolated columns standing like the bones of some vast extinct creature against the Somerset sky. These ruins, softened now by centuries of weather and grass, constitute one of the most affecting spectacles in the English landscape—a monument not merely to the transience of human works but to the specific violence by which a place of a thousand years’ sanctity was, within the span of a single season, reduced to fragments.

It is in these ruins that the several strata of the Glastonbury legend achieve their final and most poignant confluence. Here, before the vanished high altar, lay the reinterred bones claimed to be those of Arthur, now scattered and lost. Here rose the Old Church of Joseph’s founding, its site marked and venerated. Here the last abbot looked out upon the marsh from the gallows atop the hill. The ruin gathers into itself the pagan hollow hill and the Christian shrine, the sleeping king and the martyred abbot, the island of glass and the isle of apples, and holds them all in the grey and permanent melancholy of broken stone.

The Reclamation: Glastonbury and the Modern Mythographers

No chronicle of Glastonbury would be complete without attention to its most recent stratum of meaning, for the accumulation of legend did not cease with the dissolution but resumed, with renewed vigor, in the modern age.

The nineteenth century’s revival of interest in the medieval past, and the Romantic movement’s appetite for the mystical and the melancholy, restored Glastonbury to cultural prominence. Yet the truly consequential reinvention came in the early twentieth century, when the site became a locus for a new and eclectic spirituality that drew upon Celtic revival, esoteric Christianity, and the emerging currents of what would later be termed the New Age. Figures of the Edwardian occult revival identified Glastonbury as a spiritual center of the first importance, and the archaeologist Frederick Bligh Bond, appointed to direct excavations at the abbey in the early years of the century, notoriously claimed to have located buried chapels through communications received by automatic writing from long-dead monks—a scandal that cost him his position but that captures perfectly the modern reenchantment of the site.

The concept of Glastonbury as a node of terrestrial spiritual energy received its most influential elaboration in the mid-twentieth century with the writings of those who identified the town as a point upon supposed alignments of ancient sites, and who advanced the theory of a vast landscape zodiac—the Glastonbury Zodiac—purportedly traced in the very field boundaries and waterways of the surrounding country, a titanic astrological figure inscribed upon the Somerset earth by an unknown ancient hand. That such theories command no credence among professional archaeologists is beside the point for the historian of belief; what matters is that they represent the continuation, into the modern secular age, of the identical impulse that produced the legend of Gwyn ap Nudd and the grave of Arthur—the irresistible human compulsion to read significance into this particular landscape, to insist that this low hill above the drowned levels must mean something more than geology permits.

Today the town stands as a place of pilgrimage for seekers of every persuasion, its streets lined with establishments catering to a spirituality as eclectic as it is earnest, the Tor crowned still by its lonely tower, the Chalice Well still running red, the descendants of the Holy Thorn still blossoming, when the vandals spare them, in the depth of winter. The chronicle of Glastonbury thus refuses to close; it remains an open manuscript, still receiving its inscriptions, still transmuting the longings of each new generation into legend.

Conclusion: The Anatomy of a Sacred Place

What, then, is the discerning student to make of Glastonbury, when the accumulated strata have been separated and examined?

The rigorous conclusion is at once deflating and profound. Almost none of the great legends survive historical scrutiny. Arthur’s grave was, in all probability, a pious contrivance born of financial desperation. Joseph of Arimathea never trod the Somerset soil, and the Old Church was no apostolic foundation. The Grail is a literary creation of the twelfth century, and the Zodiac an invention of the twentieth. The terraces of the Tor are likely the work of the plough, and the red waters of the Chalice Well the work of iron.

And yet to conclude with this bare inventory of debunkings would be to miss entirely the true significance of the place, and to commit the error of the literalist who mistakes the vehicle for the meaning. Glastonbury’s importance lies not in the truth of any single one of its legends but in the astonishing fact of their accumulation—in the demonstrated capacity of a single unremarkable hill above a drained marsh to serve, across two thousand years and through every transformation of religion and culture, as a vessel into which human beings have poured their deepest needs: for a threshold to the world beyond death, for a king who does not truly die, for a sanctity reaching back to the very foot of the Cross, for a landscape charged with meaning in an age that has drained meaning from so much else.

The Isle of Glass is, in the final reckoning, a mirror—transparent, as its ancient name suggests, and reflecting back to each age the face of its own longing. The pagan saw the hollow hill of the fairy king; the medieval monk saw the grave of Arthur and the church of Joseph; the modern seeker sees the zodiac and the energy line. Each was, in the strict historical sense, mistaken. Each was also participating in something entirely real: the ancient and unbroken human practice of investing the earth with significance, of insisting against all the evidence of geology that certain places are set apart, that the veil grows thin, that the ground remembers.

This is the vestige that Glastonbury preserves, more durable than any leaden cross or blossoming thorn: the record of the human need to sanctify the landscape, chronicled in the very layering of its impossible legends. And in that record, the collector of forgotten histories may find something more valuable than mere fact—a study of the mechanism by which the transient longings of mortal generations are pressed, like flowers in a book, into the permanent melancholy of a sacred place.

The narratives chronicled above are not confined to the page. For the antiquarian who wishes to hold a fragment of this drowned and haunted country in hand—to possess an object that carries the atmospheric weight of the Isle of Glass and its unquiet legends—the collection assembled by Wicked Dual awaits your inspection. Each piece has been curated as a tangible vestige of the histories examined here, an artifact by which the melancholy grandeur of such places may be brought into your own keeping. You are invited to visit http://www.wickeddualblog.com, where the corridors of the collection open to those who would walk them.

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We invite you to enter the haunted archive and secure a piece for your private collection; it is a necessary addition for those who curate the darker corners of human history.

Further reading list

Ashe, G. (1957). King Arthur’s Avalon: The story of Glastonbury. Collins.

Ashe, G. (1968). The quest for Arthur’s Britain. Pall Mall Press.

Carley, J. P. (1988). Glastonbury Abbey: The holy house at the head of the Moors Adventurous. Boydell Press.

Carley, J. P. (Ed.). (2001). Glastonbury Abbey and the Arthurian tradition. D. S. Brewer.

Geoffrey of Monmouth. (1966). The history of the kings of Britain (L. Thorpe, Trans.). Penguin Books. (Original work composed ca. 1136)

Gerald of Wales. (1978). The journey through Wales and the description of Wales (L. Thorpe, Trans.). Penguin Books. (Original works composed ca. 1191–1194)

Rahtz, P. (1993). Glastonbury (English Heritage series). Batsford.

Rahtz, P., & Watts, L. (2003). Glastonbury: Myth and archaeology. Tempus.

Robinson, J. A. (1926). Two Glastonbury legends: King Arthur and St. Joseph of Arimathea. Cambridge University Press.

Rollason, D. (1989). Saints and relics in Anglo-Saxon England. Blackwell.

Treharne, R. F. (1967). The Glastonbury legends: Joseph of Arimathea, the Holy Grail, and King Arthur. Cresset Press.

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