Whether a modern student could ever gain similar powers from mathematical research alone, was still to be seen. Suceess, Gilman added, might lead to dangerous and unthinkable situations, for who could foretell the conditions pervading an adjacent but normally inaccessible dimension? On the other hand, the picturesque possibilities were enormous. Time could not exist in certain belts of space, and by entering and remaining in such a belt one might preserve one's life and age indefinitely; never suffering organic metabolism or deterioration except for slight amounts incurred during visits to one's own or similar planes. One might, for example, pass into a timeless dimension and emerge at some remote period of the earth's history as young as before.
Whether anybody had ever managed to do this, one could hardly conjecture with any degree of authority. Old legends are hazy and ambiguous, and in historic times all attempts at crossing forbidden gaps seem complicated by strange and terrible alliances with beings and messengers from outside. There was the immemorial figure of the deputy or messenger of hidden and terrible powers — the "Black Man" of the witch-cult, and the "Nyarlathotep" of the Necronomicon. There was, too, the baffling problem of the lesser messengers or intermediaries — the quasi-animals and queer hybrids which legend depicts as witches' familiars. As Gilman and Elwood retired, too sleepy to argue further, they heard Joe Mazurewicz reel into the house half drunk, and shuddered at the desperate wildness of his whining prayers.
That night Gilman saw the violet light again. In his dream he had heard a scratching and gnawing in the partitions, and thought that someone fumbled clumsily at the latch. Then he saw the old woman and the small furry thing advancing toward him over the carpeted floor. The beldame's face was alight with inhuman exultation, and the little yellow-toothed morbidity tittered mockingly as it pointed at the heavily-sleeping form of Elwood on the other couch across the room. A paralysis of fear stifled all attempts to cry out. As once before, the hideous crone seized Gilman by the shoulders, yanking him out of bed and into empty space. Again the infinitude of the shrieking abysses flashed past him, but in another second he thought he was in a dark, muddy, unknown alley of foetid odors with the rotting walls of ancient houses towering up on every hand.
Ahead was the robed black man he had seen in the peaked space in the other dream, while from a lesser distance the old woman was beckoning and grimacing imperiously. Brown Jenkin was rubbing itself with a kind of affectionate playfulness around the ankles of the black man, which the deep mud largely concealed. There was a dark open doorway on the right, to which the black man silently pointed. Into this the grinning crone started, dragging Gilman after her by his pajama sleeves. There were evil-smelling staircases which creaked ominously, and on which the old woman seemed to radiate a faint violet light; and finally a door leading off a landing. The crone fumbled with the latch and pushed the door open, motioning to Gilman to wait, and disappearing inside the black aperture.
The youth's over-sensitive ears caught a hideous strangled cry, and presently the beldame came out of the room bearing a small, senseless form which she thrust at the dreamer as if ordering him to carry it. The sight of this form, and the expression on its face, broke the spell. Still too dazed to cry out, he plunged recklessly down the noisome staircase and into the mud outside, halting only when seized and choked by the waiting black man. As consciousness departed he heard the faint, shrill tittering of the fanged, rat-like abnormality.
On the morning of the twenty-ninth Gilman awaked into a maelstrom of horror. The instant he opened his eyes he knew something was terribly wrong, for he was back in his old garret room with the slanting wall and ceiling, sprawled on the now unmade bed. His throat was aching inexplicably, and as he struggled to a sitting posture he saw with growing fright that his feet and pajama bottoms were brown with caked mud. For the moment his recollections were hopelessly hazy, but he knew at least that he must have been sleep-walking. Elwood had been lost too deeply in slumber to hear and stop him. On the floor were confused muddy prints, but oddly enough they did not extend all the way to the door. The more Gilman looked at them, the more peculiar they seemed; for in addition to those he could recognize as his there were some smaller, almost round markings — such as the legs of a large chair or a table might make, except that most of them tended to be divided into halves. There were also some curious muddy rat-tracks leading out of a fresh hole and back into it again. Utter bewilderment and the fear of madness racked Gilman as he staggered to the door and saw that there were no muddy prints outside. The more he remembered of his hideous dream the more terrified he felt, and it added to his desperation to hear Joe Mazurewicz chanting mournfully two floors below.
Descending to Elwood's room he roused his still-sleeping host and began telling of how he had found himself, but Elwood could form no idea of what might really have happened. Where Gilman could have been, how he got back to his room without making tracks in the hall, and how the muddy, furniture-like prints came to be mixed with his in the garret chamber, were wholly beyond conjecture. Then there were those dark, livid marks on his throat, as if he had tried to strangle himself. He put his hands up to them, but found that they did not even approximately fit. While they were talking, Desrochers dropped in to say that he had heard a terrific clattering overhead in the dark small hours. No, there had been no one on the stairs after midnight, though just before midnight he had heard faint footfalls in the garret, and cautiously descending steps he did not like. It was, he added, a very bad time of year for Arkham. The young gentleman had better be sure to wear the circifix Joe Mazurewicz had given him. Even the daytime was not safe, for after dawn there had been strange sounds in the house — especially a thin, childish wail hastily choked off.
Gilman mechanically attended classes that morning, but was wholly unable to fix his mind on his studies. A mood of hideous apprehension and expectancy had seized him, and he seemed to be awaiting the fall of some annihilating blow. At noon he lunched at the University spa, picking up a paper from the next seat as he waited for dessert. But he never ate that dessert; for an item on the paper's first page left him limp, wild-eyed, and able only to pay his check and stagger back to Elwood's room.
There had been a strange kidnapping the night before in Orne's Gangway, and the two-year-old child of a clod-like laundry worker named Anastasia Wolejko had completely vanished from sight. The mother, it appeared, had feared the event for some time; but the reasons she assigned for her fear were so grotesque that no one took them seriously. She had, she said, seen Brown Jenkin about the place now and then ever since early in March, and knew from its grimaces and titterings that little Ladislas must be marked for sacrifice at the awful Sabbat on Walpurgis Night. She had asked her neighbour Mary Czanek to sleep in the room and try to protect the child, but Mary had not dared. She could not tell the police, for they never believed such things. Children had been taken that way every year ever since she could remember. And her friend Pete Stowacki would not help because he wanted the child out of the way.
But what threw Gilman into a cold perspiration was the report of a pair of revellers who had been walking past the mouth of the gangway just after midnight. They admitted they had been drunk, but both vowed they had seen a crazily dressed trio furtively entering the dark passageway. There had, they said, been a huge robed negro, a little old woman in rags, and a young white man in his night-clothes. The old woman had been dragging the youth, while around the feet of the negro a tame rat was rubbing and weaving in the brown mud.