This section is from the book "Letters On Demonology And Witchcraft", by Walter Scott. Also available from Amazon: Letters On Demonology & Witchcraft.
Of these early times we can know little; but it is singular to remark what light the traditions of Scotland throw upon the poetry of the Britons of Cumberland, then called Reged. Merlin Wyllt, or the wild, is mentioned by both ; and that renowned wizard, the son of an elf, or fairy, with King Arthur, the dubious champion of Britain at that early period, were both said by tradition to have been abstracted by the fairies, and to have vanished, without having suffered death, just at the time when it was supposed that the magic of the wizard, and the celebrated sword of the monarch, which had done so much to preserve British independence, could no longer avert the impending ruin. It may be conjectured that there was a desire on the part of Arthur, or his surviving champions, to conceal his having received a mortal wound in the fatal battle of Camlan; and to that we owe the wild and beautiful incident so finely versified by Bishop Percy, in which, in token of his renouncing in future the use of arms, . the monarch sends his attendant, sole survivor of the field, to throw his sword, Excalibar, into the lake hard by. Twice eluding the request, the esquire at last complied, and threw the far-famed weapon into the lonely mere. A hand and arm arose from the water and caught Excalibar by the hilt, flourished it thrice, and then sank into the lake.* The astonished messenger returned to his master to tell him the marvels he had seen, but he only saw a boat at a distance push from the land, and heard shrieks of females in agony :—
* See Flyting of Dunbar and Kennedy.
" And whether the king was there or not He never knew, he never colde, For never 6ince that doleful day Was British Arthur seen on molde."
The circumstances attending the disappearance of Merlin would probably be found as imaginative as those of Arthur's removal, but they cannot be recovered; and, what is singular enough, circumstances which originally belonged to the history of this famous bard, said to be the son of the Demon himself, have been transferred to a later poet, and surely one of scarce inferior name, Thomas of Erceldoune. The legend was supposed to be only preserved among the inhabitants of his native valleys, but a copy as old as the reign as Henry VII. has been recovered. The story is interesting and beautifully told, and, as one of the oldest fairy legends, may well be quoted in this place.
* See Percy's Reliques of Ancient English Poetry.
Thomas of Erceldoune, in Lauderdale, called the Rhymer, on account of his producing a poetical romance on the subject of Tristrem and Yseult, which is curious as the earliest specimen of English verse known to exist, flourished in the reign of Alexander III. of Scotland. Like other men of talent of the period, Thomas was suspected of magic. He was said also to have the gift of prophecy, which was accounted for in the following peculiar manner, referring entirely to the Elfin superstition. As True Thomas (we give him the epithet by anticipation) lay on Huntly Bank, a place on the descent of the Eildon hills, which raise their triple crest above the celebrated monastery of Melrose, he saw a lady so extremely beautiful that he imagined it must be the Virgin Mary herself. Her appointments, however, were those rather of an Amazon, or goddess of the woods. Her steed was of the highest beauty and spirit, and at his mane hung thirty silver bells and nine, which made music to the wind as she paced along: Her saddle was of royal bone, (ivory,) laid over with orfeverie, i. e. goldsmith's work : Her stirrups, her dress, all corresponded with her extreme beauty and the magnificence of her array. The fair huntress had her bow in hand, and her arrows at her belt. She led three greyhounds in a leash, and three raches, or hounds of scent, followed her closely. She rejected and disclaimed the homage which Thomas desired to pay to her ; so that, passing from one extremity to the other, Thomas became as bold as he had at first been humble. The lady warns him that he must become her slave, if he should prosecute his suit towards her in the manner he proposes. Before their interview terminates, the appearance of the beautiful lady is changed into that of the most hideous hag in existence ; one side is blighted and wasted, as if by palsy; one eye drops from her head ; her colour, as clear as the virgin silver, is now of a dun leaden hue. A witch from the spital or almshouse would have been a goddess in comparison to the late beautiful huntress. Hideous as she was, Thomas's irregular desires had placed him under the control of this hag, and when she bade him take leave of the sun, and of the leaf that grew on tree, he felt himself under the necessity of obeying her. A cavern received them, in which, following his frightful guide, he for three days travelled in darkness, sometimes hearing the booming of a distant ocean, sometimes walking through rivers of blood, which crossed their subterranean path. At length they emerged into daylight, in a most beautiful orchard. Thomas, almost fainting for want of food, stretches out his hand towards the goodly fruit which hangs around him, but is forbidden by his conductress, who informs him these are the fatal apples which were the cause of the fall of man. He perceives also that his guide had no sooner entered this mysterious ground, and breathed its magic air, than she was revived in beauty, equipage, and splendour, as fair or fairer than he had first seen her on the mountain. She then com mands him to lay his head upon her knee, and proceeds to explain to him the character of the country.
" Yonder right-hand path," she says, " conveys the spirits of the blest to paradise; yon downward and well-worn way leads sinful souls to the place of everlasting punishment; the third road, by yonder dark brake, conducts to the milder place of pain, from which prayer and mass may release offenders. But see you yet a fourth road, sweeping along the plain to yonder splendid castle ? yonder is the road to Elfland, to which we are now bound. The lord of the castle is king of the country, and I am his queen. But, Thomas, I would rather be drawn with wild horses, than he should know what hath passed between you and me. Therefore, when we enter yonder castle, observe strict silence, and answer no question that is asked at you, and I will account for your silence by saying I took your speech when I brought you from middle earth."
 
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