Gilman’s room was of good size but queerly irregular shape; the north wall slanting perceptibly inward from the outer to the inner end, while the low ceiling slanted gently downward in the same direction. Aside from an obvious rat-hole and the signs of other stopped-up ones, there was no access—nor any appearance of a former avenue of access—to the space which must have existed between the slanting wall and the straight outer wall on the house’s north side, though a view from the exterior shewed where a window had been boarded up at a very remote date. The loft above the ceiling—which must have had a slanting floor—was likewise inaccessible. When Gilman climbed up a ladder to the cobwebbed level loft above the rest of the attic he found vestiges of a bygone aperture tightly and heavily covered with ancient planking and secured by the stout wooden pegs common in colonial carpentry. No amount of persuasion, however, could induce the stolid landlord to let him investigate either of these two closed spaces.

  As time wore along, his absorption in the irregular wall and ceiling of his room increased; for he began to read into the odd angles a mathematical significance which seemed to offer vague clues regarding their purpose. Old Keziah, he reflected, might have had excellent reasons for living in a room with peculiar angles; for was it not through certain angles that she claimed to have gone outside the boundaries of the world of space we know? His interest gradually veered away from the unplumbed voids beyond the slanting surfaces, since it now appeared that the purpose of those surfaces concerned the side he was already on.

  The touch of brain-fever and the dreams began early in February. For some time, apparently, the curious angles of Gilman’s room had been having a strange, almost hypnotic effect on him; and as the bleak winter advanced he had found himself staring more and more intently at the corner where the down-slanting ceiling met the inward-slanting wall. About this period his inability to concentrate on his formal studies worried him considerably, his apprehensions about the mid-year examinations being very acute. But the exaggerated sense of hearing was scarcely less annoying. Life had become an insistent and almost unendurable cacophony, and there was that constant, terrifying impression of other sounds—perhaps from regions beyond life—trembling on the very brink of audibility. So far as concrete noises went, the rats in the ancient partitions were the worst. Sometimes their scratching seemed not only furtive but deliberate. When it came from beyond the slanting north wall it was mixed with a sort of dry rattling—and when it came from the century-closed loft above the slanting ceiling Gilman always braced himself as if expecting some horror which only bided its time before descending to engulf him utterly.

  The dreams were wholly beyond the pale of sanity, and Gilman felt that they must be a result, jointly, of his studies in mathematics and in folklore. He had been thinking too much about the vague regions which his formulae told him must lie beyond the three dimensions we know, and about the possibility that old Keziah Mason—guided by some influence past all conjecture—had actually found the gate to those regions. The yellowed county records containing her testimony and that of her accusers were so damnably suggestive of things beyond human experience—and the descriptions of the darting little furry object which served as her familiar were so painfully realistic despite their incredible details.

  That object—no larger than a good-sized rat and quaintly called by the townspeople “Brown Jenkin”—seemed to have been the fruit of a remarkable case of sympathetic herd-delusion, for in 1692 no less than eleven persons had testified to glimpsing it. There were recent rumours, too, with a baffling and disconcerting amount of agreement. Witnesses said it had long hair and the shape of a rat, but that its sharp-toothed, bearded face was evilly human while its paws were like tiny human hands. It took messages betwixt old Keziah and the devil, and was nursed on the witch’s blood—which it sucked like a vampire. Its voice was a kind of loathsome titter, and it could speak all languages. Of all the bizarre monstrosities in Gilman’s dreams, nothing filled him with greater panic and nausea than this blasphemous and diminutive hybrid, whose image flitted across his vision in a form a thousandfold more hateful than anything his waking mind had deduced from the ancient records and the modern whispers.

  Gilman’s dreams consisted largely in plunges though limitless abysses of inexplicably coloured twilight and bafflingly disordered sound; abysses whose material and gravitational properties, and whose relation to his own entity, he could not even begin to explain. He did not walk or climb, fly or swim, crawl or wriggle; yet always experienced a mode of motion partly voluntary and partly involuntary. Of his own condition he could not well judge, for sight of his arms, legs, and torso seemed always cut off by some odd disarrangement of perspective; but he felt that his physical organisation and faculties were somehow marvellously transmuted and obliquely projected—though not without a certain grotesque relationship to his normal proportions and properties.

  The abysses were by no means vacant, being crowded with indescribably angled masses of alien-hued substance, some of which appeared to be organic while others seemed inorganic. A few of the organic objects tended to awake vague memories in the back of his mind, though he could form no conscious idea of what they mockingly resembled or suggested. In the later dreams he began to distinguish separate categories into which the organic objects appeared to be divided, and which seemed to involve in each case a radically different species of conduct-pattern and basic motivation. Of these categories one seemed to him to include objects slightly less illogical and irrelevant in their motions than the members of the other categories.

  All the objects—organic and inorganic alike—were totally beyond description or even comprehension. Gilman sometimes compared the inorganic masses to prisms, labyrinths, clusters of cubes and planes, and Cyclopean buildings; and the organic things struck him variously as groups of bubbles, octopi, centipedes, living Hindoo idols, and intricate Arabesques roused into a kind of ophidian animation. Everything he saw was unspeakably menacing and horrible; and whenever one of the organic entities appeared by its motions to be noticing him, he felt a stark, hideous fright which generally jolted him awake. Of how the organic entities moved, he could tell no more than of how he moved himself. In time he observed a further mystery—the tendency of certain entities to appear suddenly out of empty space, or to disappear totally with equal suddenness. The shrieking, roaring confusion of sound which permeated the abysses was past all analysis as to pitch, timbre, or rhythm; but seemed to be synchronous with vague visual changes in all the indefinite objects, organic and inorganic alike. Gilman had a constant sense of dread that it might rise to some unbearable degree of intensity during one or another of its obscure, relentlessly inevitable fluctuations.

  But it was not in these vortices of complete alienage that he saw Brown Jenkin. That shocking little horror was reserved for certain lighter, sharper dreams which assailed him just before he dropped into the fullest depths of sleep. He would be lying in the dark fighting to keep awake when a faint lambent glow would seem to shimmer around the centuried room, shewing in a violet mist the convergence of angled planes which had seized his brain so insidiously. The horror would appear to pop out of the rat-hole in the corner and patter toward him over the sagging, wide-planked floor with evil expectancy in its tiny, bearded human face—but mercifully, this dream always melted away before the object got close enough to nuzzle him. It had hellishly long, sharp, canine teeth. Gilman tried to stop up the rat-hole every day, but each night the real tenants of the partitions would gnaw away the obstruction, whatever it might be. Once he had the landlord nail tin over it, but the next night the rats gnawed a fresh hole—in making which they pushed or dragged out into the room a curious little fragment of bone.

  Gilman did not report his fever to the doctor, for he knew he could not pass the examinations if ordered to the college infirmary when every moment was needed for cramming. As it was, he failed in Calculus D and Advanced General Psychology, though not without hope of making up lost ground before the end of
the term. It was in March when the fresh element entered his lighter preliminary dreaming, and the nightmare shape of Brown Jenkin began to be companioned by the nebulous blur which grew more and more to resemble a bent old woman. This addition disturbed him more than he could account for, but finally he decided that it was like an ancient crone whom he had twice actually encountered in the dark tangle of lanes near the abandoned wharves. On those occasions the evil, sardonic, and seemingly unmotivated stare of the beldame had set him almost shivering—especially the first time, when an overgrown rat darting across the shadowed mouth of a neighbouring alley had made him think irrationally of Brown Jenkin. Now, he reflected, those nervous fears were being mirrored in his disordered dreams.

  That the influence of the old house was unwholesome, he could not deny; but traces of his early morbid interest still held him there. He argued that the fever alone was responsible for his nightly phantasies, and that when the touch abated he would be free from the monstrous visions. Those visions, however, were of abhorrent vividness and convincingness, and whenever he awaked he retained a vague sense of having undergone much more than he remembered. He was hideously sure that in unrecalled dreams he had talked with both Brown Jenkin and the old woman, and that they had been urging him to go somewhere with them and to meet a third being of greater potency.

  Toward the end of March he began to pick up in his mathematics, though other studies bothered him increasingly. He was getting an intuitive knack for solving Riemannian equations, and astonished Professor Upham by his comprehension of fourth-dimensional and other problems which had floored all the rest of the class. One afternoon there was a discussion of possible freakish curvatures in space, and of theoretical points of approach or even contact between our part of the cosmos and various other regions as distant as the farthest stars or the trans-galactic gulfs themselves—or even as fabulously remote as the tentatively conceivable cosmic units beyond the whole Einsteinian space-time continuum. Gilman’s handling of this theme filled everyone with admiration, even though some of his hypothetical illustrations caused an increase in the always plentiful gossip about his nervous and solitary eccentricity. What made the students shake their heads was his sober theory that a man might—given mathematical knowledge admittedly beyond all likelihood of human acquirement—step deliberately from the earth to any other celestial body which might lie at one of an infinity of specific points in the cosmic pattern.

  Such a step, he said, would require only two stages; first, a passage out of the three-dimensional sphere we know, and second, a passage back to the three-dimensional sphere at another point, perhaps one of infinite remoteness. That this could be accomplished without loss of life was in many cases conceivable. Any being from any part of three-dimensional space could probably survive in the fourth dimension; and its survival of the second stage would depend upon what alien part of three-dimensional space it might select for its re-entry. Denizens of some planets might be able to live on certain others—even planets belonging to other galaxies, or to similar-dimensional phases of other space-time continua—though of course there must be vast numbers of mutually uninhabitable even though mathematically juxtaposed bodies or zones of space.

  It was also possible that the inhabitants of a given dimensional realm could survive entry to many unknown and incomprehensible realms of additional or indefinitely multiplied dimensions—be they within or outside the given space-time continuum—and that the converse would be likewise true. This was a matter for speculation, though one could be fairly certain that the type of mutation involved in a passage from any given dimensional plane to the next higher plane would not be destructive of biological integrity as we understand it. Gilman could not be very clear about his reasons for this last assumption, but his haziness here was more than overbalanced by his clearness on other complex points. Professor Upham especially liked his demonstration of the kinship of higher mathematics to certain phases of magical lore transmitted down the ages from an ineffable antiquity—human or pre-human—whose knowledge of the cosmos and its laws was greater than ours.

  Around the first of April Gilman worried considerably because his slow fever did not abate. He was also troubled by what some of his fellow-lodgers said about his sleep-walking. It seemed that he was often absent from his bed, and that the creaking of his floor at certain hours of the night was remarked by the man in the room below. This fellow also spoke of hearing the tread of shod feet in the night; but Gilman was sure he must have been mistaken in this, since shoes as well as other apparel were always precisely in place in the morning. One could develop all sorts of aural delusions in this morbid old house—for did not Gilman himself, even in daylight, now feel certain that noises other than rat-scratchings came from the black voids beyond the slanting wall and above the slanting ceiling? His pathologically sensitive ears began to listen for faint footfalls in the immemorially sealed loft overhead, and sometimes the illusion of such things was agonisingly realistic.

  However, he knew that he had actually become a somnambulist; for twice at night his room had been found vacant, though with all his clothing in place. Of this he had been assured by Frank Elwood, the one fellow-student whose poverty forced him to room in this squalid and unpopular house. Elwood had been studying in the small hours and had come up for help on a differential equation, only to find Gilman absent. It had been rather presumptuous of him to open the unlocked door after knocking had failed to rouse a response, but he had needed the help very badly and thought that his host would not mind a gentle prodding awake. On neither occasion, though, had Gilman been there—and when told of the matter he wondered where he could have been wandering, barefoot and with only his night-clothes on. He resolved to investigate the matter if reports of his sleep-walking continued, and thought of sprinkling flour on the floor of the corridor to see where his footsteps might lead. The door was the only conceivable egress, for there was no possible foot-hold outside the narrow window.

  As April advanced Gilman’s fever-sharpened ears were disturbed by the whining prayers of a superstitious loomfixer named Joe Mazurewicz, who had a room on the ground floor. Mazurewicz had told long, rambling stories about the ghost of old Keziah and the furry, sharp-fanged, nuzzling thing, and had said he was so badly haunted at times that only his silver crucifix—given him for the purpose by Father Iwanicki of St. Stanislaus’ Church—could bring him relief. Now he was praying because the Witches’ Sabbath was drawing near. May-Eve was Walpurgis-Night, when hell’s blackest evil roamed the earth and all the slaves of Satan gathered for nameless rites and deeds. It was always a very bad time in Arkham, even though the fine folks up in Miskatonic Avenue and High and Saltonstall Streets pretended to know nothing about it. There would be bad doings—and a child or two would probably be missing. Joe knew about such things, for his grandmother in the old country had heard tales from her grandmother. It was wise to pray and count one’s beads at this season. For three months Keziah and Brown Jenkin had not been near Joe’s room, nor near Paul Choynski’s room, nor anywhere else—and it meant no good when they held off like that. They must be up to something.

  Gilman dropped in at a doctor’s office on the 16th of the month, and was surprised to find his temperature was not as high as he had feared. The physician questioned him sharply, and advised him to see a nerve specialist. On reflection, he was glad he had not consulted the still more inquisitive college doctor. Old Waldron, who had curtailed his activities before, would have made him take a rest—an impossible thing now that he was so close to great results in his equations. He was certainly near the boundary between the known universe and the fourth dimension, and who could say how much farther he might go?

  But even as these thoughts came to him he wondered at the source of his strange confidence. Did all of this perilous sense of imminence come from the formulae on the sheets he covered day by day? The soft, stealthy, imaginary footsteps in the sealed loft above were unnerving. And now, too, there was a growing feeling that somebody w
as constantly persuading him to do something terrible which he could not do. How about the somnambulism? Where did he go sometimes in the night? And what was that faint suggestion of sound which once in a while seemed to trickle through the maddening confusion of identifiable sounds even in broad daylight and full wakefulness? Its rhythm did not correspond to anything on earth, unless perhaps to the cadence of one or two unmentionable Sabbat-chants, and sometimes he feared it corresponded to certain attributes of the vague shrieking or roaring in those wholly alien abysses of dream.

  The dreams were meanwhile getting to be atrocious. In the lighter preliminary phase the evil old woman was now of fiendish distinctness, and Gilman knew she was the one who had frightened him in the slums. Her bent back, long nose, and shrivelled chin were unmistakable, and her shapeless brown garments were like those he remembered. The expression on her face was one of hideous malevolence and exultation, and when he awaked he could recall a croaking voice that persuaded and threatened. He must meet the Black Man, and go with them all to the throne of Azathoth at the centre of ultimate Chaos. That was what she said. He must sign in his own blood the book of Azathoth and take a new secret name now that his independent delvings had gone so far. What kept him from going with her and Brown Jenkin and the other to the throne of Chaos where the thin flutes pipe mindlessly was the fact that he had seen the name “Azathoth” in the Necronomicon, and knew it stood for a primal evil too horrible for description.