There are, in addition, at least two lines of rather more positive evidence; one of which comes through my researches in Danish annals concerning the sorcerer, Axel Holm. Such a person, indeed, left many traces in folklore and written records; and diligent library sessions, plus conferences with various learned Danes, have shed much light on his evil fame. At present I need say only that the Copenhagen glass-blower—born in 1612—was a notorious Luciferian whose pursuits and final vanishing formed a matter of awed debate over two centuries ago. He had burned with a desire to know all things and to conquer every limitation of mankind—to which end he had delved deeply into occult and forbidden fields ever since he was a child.
He was commonly held to have joined a coven of the dreaded witchcult, and the vast lore of ancient Scandinavian myth—with its Loki the Sly One and the accursed Fenris-Wolf—was soon an open book to him. He had strange interests and objectives, few of which were definitely known, but some of which were recognized as intolerably evil. It is recorded that his two Negro helpers, originally slaves from the Danish West Indies, had become mute soon after their acquisition by him; and that they had disappeared not long before his own disappearance from the ken of mankind.
Near the close of an already long life the idea of a glass of immortality appears to have entered his mind. That he had acquired an enchanted mirror of inconceivable antiquity was a matter of common whispering; it being alleged that he had purloined it from a fellow-sorcerer who had entrusted it to him for polishing.
This mirror—according to popular tales a trophy as potent in its way as the better-known Aegis of Minerva or Hammer of Thor—was a small oval object called "Loki's Glass," made of some polished fusible mineral and having magical properties which included the divination of the immediate future and the power to show the possessor his enemies. That it had deeper potential properties, realizable in the hands of an erudite magician, none of the common people doubted; and even educated persons attached much fearful importance to Holm's rumored attempts to incorporate it in a larger glass of immortality. Then had come the wizard's disappearance in 1687, and the final sale and dispersal of his goods amidst a growing cloud of fantastic legendry. It was, altogether, just such a story as one would laugh at if possessed of no particular key; yet to me, remembering those dream messages and having Robert Grandison's corroboration before me, it formed a positive confirmation of all the bewildering marvels that had been unfolded.
But as I have said, there is still another line of rather positive evidence—of a very different character—at my disposal. Two days after his release, as Robert, greatly improved in strength and appearance, was placing a log on my living-room fire, I noticed a certain awkwardness in his motions and was struck by a persistent idea. Summoning him to my desk I suddenly asked him to pick up an ink-stand—and was scarcely surprised to note that, despite lifelong right-handedness, he obeyed unconsciously with his left hand. Without alarming him, I then asked that he unbutton his coat and let me listen to his cardiac action. What I found upon placing my ear to his chest—and what I did not tell him for some time afterward—was that his heart was beating on his right side.
He had gone into the glass right-handed and with all organs in their normal positions. Now he was left-handed and with organs reversed, and would doubtless continue so for the rest of his life. Clearly, the dimensional transition had been no illusion—for this physical change was tangible and unmistakable. Had there been a natural exit from the glass, Robert would probably have undergone a thorough re-reversal and emerged in perfect normality—as indeed the color-scheme of his body and clothing did emerge. The forcible nature of his release, however, undoubtedly set something awry; so that dimensions no longer had a chance to right themselves as chromatic wave-frequencies still did.
I had not merely opened Holm's trap; I had destroyed it; and at the particular stage of destruction marked by Robert's escape some of the reversing properties had perished. It is significant that in escaping Robert had felt no pain comparable to that experienced in entering. Had the destruction been still more sudden, I shiver to think of the monstrosities of color the boy would always have been forced to bear. I may add that after discovering Robert's reversal I examined the rumpled and discarded clothing he had worn in the glass, and found, as I had expected, a complete reversal of pockets, buttons, and all other corresponding details.
At this moment Loki's Glass, just as it fell on my Bokhara rug from the now patched and harmless mirror, weighs down a sheaf of papers on my writing-table here in St. Thomas, venerable capital of the Danish West Indies—now the American Virgin Islands. Various collectors of old Sandwich glass have mistaken it for an odd bit of that early American product—but I privately realize that my paper-weight is an antique of far subtler and more paleologean craftsmanship. Still, I do not disillusion such enthusiasts.