The cat looked up at him for a moment, smiling in its ecstasy, blinking its eyes, but too happy to pause. He spoke to it again. He called to it several times, and each time it turned upon him its blazing eyes, drunk with inner delight, opening and shutting its lips, its body large and rigid with excitement. Yet it never for one instant paused in its short journeys to and fro.

He noted exactly what it did: it walked, he saw, the same number of paces each time, some six or seven steps, and then it turned sharply and retraced them. By the pattern of the great roses in the carpet he measured it. It kept to the same direction and the same line. It behaved precisely as though it were rubbing against something solid.

Undoubtedly, there was something standing there on that strip of carpet, something invisible to the doctor, something that alarmed the dog, yet caused the cat unspeakable pleasure.

"Smokie!" he called again, "Smokie, you black mystery, what is it excites you so?"

Again the cat looked up at him for a brief second, and then continued its sentry-walk, blissfully happy, intensely preoccupied. And, for an instant, as he watched it, the doctor was aware that a faint uneasiness stirred in the depths of his own being, focusing itself for the moment upon this curious behaviour of the uncanny creature before him.

There rose in him quite a new realisation of the mystery connected with the whole feline tribe, but especially with that common member of it, the domestic cat--their hidden lives, their strange aloofness, their incalculable subtlety. How utterly remote from anything that human beings understood lay the sources of their elusive activities. As he watched the indescribable bearing of the little creature mincing along the strip of carpet under his eyes, coquetting with the powers of darkness, welcoming, maybe, some fearsome visitor, there stirred in his heart a feeling strangely akin to awe. Its indifference to human kind, its serene superiority to the obvious, struck him forcibly with fresh meaning; so remote, so inaccessible seemed the secret purposes of its real life, so alien to the blundering honesty of other animals. Its absolute poise of bearing brought into his mind the opium-eater's words that "no dignity is perfect which does not at some point ally itself with the mysterious"; and he became suddenly aware that the presence of the dog in this foggy, haunted room on the top of Putney Hill was uncommonly welcome to him. He was glad to feel that Flame's dependable personality was with him. The savage growling at his heels was a pleasant sound. He was glad to hear it. That marching cat made him uneasy.

Finding that Smoke paid no further attention to his words, the doctor decided upon action. Would it rub against his leg, too? He would take it by surprise and see.

He stepped quickly forward and placed himself upon the exact strip of carpet where it walked.

But no cat is ever taken by surprise! The moment he occupied the s.p.a.ce of the Intruder, setting his feet on the woven roses midway in the line of travel, Smoke suddenly stopped purring and sat down. If lifted up its face with the most innocent stare imaginable of its green eyes. He could have sworn it laughed. It was a perfect child again. In a single second it had resumed its simple, domestic manner; and it gazed at him in such a way that he almost felt Smoke was the normal being, and _his_ was the eccentric behaviour that was being watched. It was consummate, the manner in which it brought about this change so easily and so quickly.

"Superb little actor!" he laughed in spite of himself, and stooped to stroke the shining black back. But, in a flash, as he touched its fur, the cat turned and spat at him viciously, striking at his hand with one paw. Then, with a hurried scutter of feet, it shot like a shadow across the floor and a moment later was calmly sitting over by the window-curtains washing its face as though nothing interested it in the whole world but the cleanness of its cheeks and whiskers.

John Silence straightened himself up and drew a long breath. He realised that the performance was temporarily at an end. The collie, meanwhile, who had watched the whole proceeding with marked disapproval, had now lain down again upon the mat by the fire, no longer growling. It seemed to the doctor just as though something that had entered the room while he slept, alarming the dog, yet bringing happiness to the cat, had now gone out again, leaving all as it was before. Whatever it was that excited its blissful attentions had retreated for the moment.

He realised this intuitively. Smoke evidently realised it, too, for presently he deigned to march back to the fireplace and jump upon his master's knees. Dr. Silence, patient and determined, settled down once more to his book. The animals soon slept; the fire blazed cheerfully; and the cold fog from outside poured into the room through every available c.h.i.n.k and crannie.

For a long time silence and peace reigned in the room and Dr. Silence availed himself of the quietness to make careful notes of what had happened. He entered for future use in other cases an exhaustive a.n.a.lysis of what he had observed, especially with regard to the effect upon the two animals. It is impossible here, nor would it be intelligible to the reader unversed in the knowledge of the region known to a scientifically trained psychic like Dr. Silence, to detail these observations. But to him it was clear, up to a certain point--for the rest he must still wait and watch. So far, at least, he realised that while he slept in the chair--that is, while his will was dormant--the room had suffered intrusion from what he recognised as an intensely active Force, and might later be forced to acknowledge as something more than merely a blind force, namely, a distinct personality.

So far it had affected himself scarcely at all, but had acted directly upon the simpler organisms of the animals. It stimulated keenly the centres of the cat's psychic being, inducing a state of instant happiness (intensifying its consciousness probably in the same way a drug or stimulant intensifies that of a human being); whereas it alarmed the less sensitive dog, causing it to feel a vague apprehension and distress.

His own sudden action and exhibition of energy had served to disperse it temporarily, yet he felt convinced--the indications were not lacking even while he sat there making notes--that it still remained near to him, conditionally if not spatially, and was, as it were, gathering force for a second attack.

And, further, he intuitively understood that the relations between the two animals had undergone a subtle change: that the cat had become immeasurably superior, confident, sure of itself in its own peculiar region, whereas Flame had been weakened by an attack he could not comprehend and knew not how to reply to. Though not yet afraid, he was defiant--ready to act against a fear that he felt to be approaching. He was no longer fatherly and protective towards the cat. Smoke held the key to the situation; and both he and the cat knew it.

Thus, as the minutes pa.s.sed, John Silence sat and waited, keenly on the alert, wondering how soon the attack would be renewed, and at what point it would be diverted from the animals and directed upon himself.

The book lay on the floor beside him, his notes were complete. With one hand on the cat's fur, and the dog's front paws resting against his feet, the three of them dozed comfortably before the hot fire while the night wore on and the silence deepened towards midnight.

It was well after one o'clock in the morning when Dr. Silence turned the lamp out and lighted the candle preparatory to going up to bed. Then Smoke suddenly woke with a loud sharp purr and sat up. It neither stretched, washed nor turned: it listened. And the doctor, watching it, realised that a certain indefinable change had come about that very moment in the room. A swift readjustment of the forces within the four walls had taken place--a new disposition of their personal equations.

The balance was destroyed, the former harmony gone. Smoke, most sensitive of barometers, had been the first to feel it, but the dog was not slow to follow suit, for on looking down he noted that Flame was no longer asleep. He was lying with eyes wide open, and that same instant he sat up on his great haunches and began to growl.

Dr. Silence was in the act of taking the matches to re-light the lamp when an audible movement in the room behind him made him pause. Smoke leaped down from his knee and moved forward a few paces across the carpet. Then it stopped and stared fixedly; and the doctor stood up on the rug to watch.

As he rose the sound was repeated, and he discovered that it was not in the room as he first thought, but outside, and that it came from more directions than one. There was a rushing, sweeping noise against the window-panes, and simultaneously a sound of something brushing against the door--out in the hall. Smoke advanced sedately across the carpet, twitching his tail, and sat down within a foot of the door. The influence that had destroyed the harmonious conditions of the room had apparently moved in advance of its cause. Clearly, something was about to happen.

For the first time that night John Silence hesitated; the thought of that dark narrow hall-way, choked with fog, and dest.i.tute of human comfort, was unpleasant. He became aware of a faint creeping of his flesh. He knew, of course, that the actual opening of the door was not necessary to the invasion of the room that was about to take place, since neither doors nor windows, nor any other solid barriers could interpose an obstacle to what was seeking entrance. Yet the opening of the door would be significant and symbolic, and he distinctly shrank from it.

But for a moment only. Smoke, turning with a show of impatience, recalled him to his purpose, and he moved past the sitting, watching creature, and deliberately opened the door to its full width.

What subsequently happened, happened in the feeble and flickering light of the solitary candle on the mantlepiece.

Through the opened door he saw the hall, dimly lit and thick with fog.

Nothing, of course, was visible--nothing but the hat-stand, the African spears in dark lines upon the wall and the high-backed wooden chair standing grotesquely underneath on the oilcloth floor. For one instant the fog seemed to move and thicken oddly; but he set that down to the score of the imagination. The door had opened upon nothing.

Yet Smoke apparently thought otherwise, and the deep growling of the collie from the mat at the back of the room seemed to confirm his judgment.

For, proud and self-possessed, the cat had again risen to his feet, and having advanced to the door, was now ushering some one slowly into the room. Nothing could have been more evident. He paced from side to side, bowing his little head with great _empress.e.m.e.nt_ and holding his stiffened tail aloft like a flag-staff. He turned this way and that, mincing to and fro, and showing signs of supreme satisfaction. He was in his element. He welcomed the intrusion, and apparently reckoned that his companions, the doctor and the dog, would welcome it likewise.

The Intruder had returned for a second attack.

Dr. Silence moved slowly backwards and took up his position on the hearthrug, keying himself up to a condition of concentrated attention.

He noted that Flame stood beside him, facing the room, with body motionless, and head moving swiftly from side to side with a curious swaying movement. His eyes were wide open, his back rigid, his neck and jaws thrust forward, his legs tense and ready to leap. Savage, ready for attack or defence, yet dreadfully puzzled and perhaps already a little cowed, he stood and stared, the hair on his spine and sides positively bristling outwards as though a wind played through it. In the dim firelight he looked like a great yellow-haired wolf, silent, eyes shooting dark fire, exceedingly formidable. It was Flame, the terrible.

Smoke, meanwhile, advanced from the door towards the middle of the room, adopting the very slow pace of an invisible companion. A few feet away it stopped and began to smile and blink its eyes. There was something deliberately coaxing in its att.i.tude as it stood there undecided on the carpet, clearly wishing to effect some sort of introduction between the Intruder and its canine friend and ally. It a.s.sumed its most winning manners, purring, smiling, looking persuasively from one to the other, and making quick tentative steps first in one direction and then in the other. There had always existed such perfect understanding between them in everything. Surely Flame would appreciate Smoke's intention now, and acquiesce.

But the old collie made no advances. He bared his teeth, lifting his lips till the gums showed, and stood stockstill with fixed eyes and heaving sides. The doctor moved a little farther back, watching intently the smallest movement, and it was just then he divined suddenly from the cat's behaviour and att.i.tude that it was not only a single companion it had ushered into the room, but _several_. It kept crossing over from one to the other, looking up at each in turn. It sought to win over the dog to friendliness with them all. The original Intruder had come back with reinforcements. And at the same time he further realised that the Intruder was something more than a blindly acting force, impersonal though destructive. It was a Personality, and moreover a great personality. And it was accompanied for the purposes of a.s.sistance by a host of other personalities, minor in degree, but similar in kind.

He braced himself in the corner against the mantelpiece and waited, his whole being roused to defence, for he was now fully aware that the attack had spread to include himself as well as the animals, and he must be on the alert. He strained his eyes through the foggy atmosphere, trying in vain to see what the cat and dog saw; but the candlelight threw an uncertain and flickering light across the room and his eyes discerned nothing. On the floor Smoke moved softly in front of him like a black shadow, his eyes gleaming as he turned his head, still trying with many insinuating gestures and much purring to bring about the introductions he desired.

But it was all in vain. Flame stood riveted to one spot, motionless as a figure carved in stone.

Some minutes pa.s.sed, during which only the cat moved, and then there came a sharp change. Flame began to back towards the wall. He moved his head from side to side as he went, sometimes turning to snap at something almost behind him. They were advancing upon him, trying to surround him. His distress became very marked from now onwards, and it seemed to the doctor that his anger merged into genuine terror and became overwhelmed by it. The savage growl sounded perilously like a whine, and more than once he tried to dive past his master's legs, as though hunting for a way of escape. He was trying to avoid something that everywhere blocked the way.

This terror of the indomitable fighter impressed the doctor enormously; yet also painfully; stirring his impatience; for he had never before seen the dog show signs of giving in, and it distressed him to witness it. He knew, however, that he was not giving in easily, and understood that it was really impossible for him to gauge the animal's sensations properly at all. What Flame felt, and saw, must be terrible indeed to turn him all at once into a coward. He faced something that made him afraid of more than his life merely. The doctor spoke a few quick words of encouragement to him, and stroked the bristling hair. But without much success. The collie seemed already beyond the reach of comfort such as that, and the collapse of the old dog followed indeed very speedily after this.

And Smoke, meanwhile, remained behind, watching the advance, but not joining in it; sitting, pleased and expectant, considering that all was going well and as it wished. It was kneading on the carpet with its front paws--slowly, laboriously, as though its feet were dipped in treacle. The sound its claws made as they caught in the threads was distinctly audible. It was still smiling, blinking, purring.

Suddenly the collie uttered a poignant short bark and leaped heavily to one side. His bared teeth traced a line of whiteness through the gloom.

The next instant he dashed past his master's legs, almost upsetting his balance, and shot out into the room, where he went blundering wildly against walls and furniture. But that bark was significant; the doctor had heard it before and knew what it meant: for it was the cry of the fighter against odds and it meant that the old beast had found his courage again. Possibly it was only the courage of despair, but at any rate the fighting would be terrific. And Dr. Silence understood, too, that he dared not interfere. Flame must fight his own enemies in his own way.

But the cat, too, had heard that dreadful bark; and it, too, had understood. This was more than it had bargained for. Across the dim shadows of that haunted room there must have pa.s.sed some secret signal of distress between the animals. Smoke stood up and looked swiftly about him. He uttered a piteous meow and trotted smartly away into the greater darkness by the windows. What his object was only those endowed with the spirit-like intelligence of cats might know. But, at any rate, he had at last ranged himself on the side of his friend. And the little beast meant business.

At the same moment the collie managed to gain the door. The doctor saw him rush through into the hall like a flash of yellow light. He shot across the oilcloth, and tore up the stairs, but in another second he appeared again, flying down the steps and landing at the bottom in a tumbling heap, whining, cringing, terrified. The doctor saw him slink back into the room again and crawl round by the wall towards the cat.

Was, then, even the staircase occupied? Did _They_ stand also in the hall? Was the whole house crowded from floor to ceiling?

The thought came to add to the keen distress he felt at the sight of the collie's discomfiture. And, indeed, his own personal distress had increased in a marked degree during the past minutes, and continued to increase steadily to the climax. He recognised that the drain on his own vitality grew steadily, and that the attack was now directed against himself even more than against the defeated dog, and the too much deceived cat.

It all seemed so rapid and uncalculated after that--the events that took place in this little modern room at the top of Putney Hill between midnight and sunrise--that Dr. Silence was hardly able to follow and remember it all. It came about with such uncanny swiftness and terror; the light was so uncertain; the movements of the black cat so difficult to follow on the dark carpet, and the doctor himself so weary and taken by surprise--that he found it almost impossible to observe accurately, or to recall afterwards precisely what it was he had seen or in what order the incidents had taken place. He never could understand what defect of vision on his part made it seem as though the cat had duplicated itself at first, and then increased indefinitely, so that there were at least a dozen of them darting silently about the floor, leaping softly on to chairs and tables, pa.s.sing like shadows from the open door to the end of the room, all black as sin, with brilliant green eyes flashing fire in all directions. It was like the reflections from a score of mirrors placed round the walls at different angles. Nor could he make out at the time why the size of the room seemed to have altered, grown much larger, and why it extended away behind him where ordinarily the wall should have been. The snarling of the enraged and terrified collie sounded sometimes so far away; the ceiling seemed to have raised itself so much higher than before, and much of the furniture had changed in appearance and shifted marvellously.

It was all so confused and confusing, as though the little room he knew had become merged and transformed into the dimensions of quite another chamber, that came to him, with its host of cats and its strange distances, in a sort of vision.

But these changes came about a little later, and at a time when his attention was so concentrated upon the proceedings of Smoke and the collie, that he only observed them, as it were, subconsciously. And the excitement, the flickering candlelight, the distress he felt for the collie, and the distorting atmosphere of fog were the poorest possible allies to careful observation.

At first he was only aware that the dog was repeating his short dangerous bark from time to time, snapping viciously at the empty air, a foot or so from the ground. Once, indeed, he sprang upwards and forwards, working furiously with teeth and paws, and with a noise like wolves fighting, but only to dash back the next minute against the wall behind him. Then, after lying still for a bit, he rose to a crouching position as though to spring again, snarling horribly and making short half-circles with lowered head. And Smoke all the while meowed piteously by the window as though trying to draw the attack upon himself.

Then it was that the rush of the whole dreadful business seemed to turn aside from the dog and direct itself upon his own person. The collie had made another spring and fallen back with a crash into the corner, where he made noise enough in his savage rage to waken the dead before he fell to whining and then finally lay still. And directly afterwards the doctor's own distress became intolerably acute. He had made a half movement forward to come to the rescue when a veil that was denser than mere fog seemed to drop down over the scene, draping room, walls, animals and fire in a mist of darkness and folding also about his own mind. Other forms moved silently across the field of vision, forms that he recognised from previous experiments, and welcomed not. Unholy thoughts began to crowd into his brain, sinister suggestions of evil presented themselves seductively. Ice seemed to settle about his heart, and his mind trembled. He began to lose memory--memory of his ident.i.ty, of where he was, of what he ought to do. The very foundations of his strength were shaken. His will seemed paralysed.

And it was then that the room filled with this horde of cats, all dark as the night, all silent, all with lamping eyes of green fire. The dimensions of the place altered and shifted. He was in a much larger s.p.a.ce. The whining of the dog sounded far away, and all about him the cats flew busily to and fro, silently playing their tearing, rushing game of evil, weaving the pattern of their dark purpose upon the floor.

He strove hard to collect himself and remember the words of power he had made use of before in similar dread positions where his dangerous practice had sometimes led; but he could recall nothing consecutively; a mist lay over his mind and memory; he felt dazed and his forces scattered. The deeps within were too troubled for healing power to come out of them.

It was glamour, of course, he realised afterwards, the strong glamour thrown upon his imagination by some powerful personality behind the veil; but at the time he was not sufficiently aware of this and, as with all true glamour, was unable to grasp where the true ended and the false began. He was caught momentarily in the same vortex that had sought to lure the cat to destruction through its delight, and threatened utterly to overwhelm the dog through its terror.