He selected his animals, therefore, with wisdom so that they might afford a differing test, each in its own way, and that one should not merely communicate its own excitement to the other. He took a dog and a cat.
The cat he chose, now full grown, had lived with him since kittenhood, a kittenhood of perplexing sweetness and audacious mischief. Wayward it was and fanciful, ever playing its own mysterious games in the corners of the room, jumping at invisible nothings, leaping sideways into the air and falling with tiny moccasined feet on to another part of the carpet, yet with an air of dignified earnestness which showed that the performance was necessary to its own well-being, and not done merely to impress a stupid human audience. In the middle of elaborate washing it would look up, startled, as though to stare at the approach of some Invisible, cocking its little head sideways and putting out a velvet pad to inspect cautiously. Then it would get absent-minded, and stare with equal intentness in another direction (just to confuse the onlookers), and suddenly go on furiously washing its body again, but in quite a new place. Except for a white patch on its breast it was coal black. And its name was—Smoke.
"Smoke" described its temperament as well as its appearance. Its movements, its individuality, its posing as a little furry mass of concealed mysteries, its elfin-like elusiveness, all combined to justify its name; and a subtle painter might have pictured it as a wisp of floating smoke, the fire below betraying itself at two points only—the glowing eyes.
All its forces ran to intelligence—secret intelligence, the wordless incalculable intuition of the Cat. It was, indeed, the cat for the business in hand.
The selection of the dog was not so simple, for the doctor owned many; but after much deliberation he chose a collie, called Flame from his yellow coat. True, it was a trifle old, and stiff in the joints, and even beginning to grow deaf, but, on the other hand, it was a very particular friend of Smoke's, and had fathered it from kittenhood upwards so that a subtle understanding existed between them. It was this that turned the balance in its favour, this and its courage. Moreover, though good-tempered, it was a terrible fighter, and its anger when provoked by a righteous cause was a fury of fire, and irresistible.
It had come to him quite young, straight from the shepherd, with the air of the hills yet in its nostrils, and was then little more than skin and bones and teeth. For a collie it was sturdily built, its nose blunter than most, its yellow hair stiff rather than silky, and it had full eyes, unlike the slit eyes of its breed. Only its master could touch it, for it ignored strangers, and despised their pattings—when any dared to pat it. There was something patriarchal about the old beast. He was in earnest, and went through life with tremendous energy and big things in view, as though he had the reputation of his whole race to uphold. And to watch him fighting against odds was to understand why he was terrible.
In his relations with Smoke he was always absurdly gentle; also he was fatherly; and at the same time betrayed a certain diffidence or shyness. He recognised that Smoke called for strong yet respectful management. The cat's circuitous methods puzzled him, and his elaborate pretences perhaps shocked the dog's liking for direct, undisguised action. Yet, while he failed to comprehend these tortuous feline mysteries, he was never contemptuous or condescending; and he presided over the safety of his furry black friend somewhat as a father, loving, but intuitive, might superintend the vagaries of a wayward and talented child. And, in return, Smoke rewarded him with exhibitions of fascinating and audacious mischief.
And these brief descriptions of their characters are necessary for the proper understanding of what subsequently took place.
With Smoke sleeping in the folds of his fur coat, and the collie lying watchful on the seat opposite, John Silence went down in his motor after dinner on the night of November 15th.
And the fog was so dense that they were obliged to travel at quarter speed the entire way.
It was after ten o'clock when he dismissed the motor and entered the dingy little house with the latchkey provided by Pender. He found the hall gas turned low, and a fire in the study. Books and food had also been placed ready by the servant according to instructions. Coils of fog rushed in after him through the open door and filled the hall and passage with its cold discomfort.
The first thing Dr. Silence did was to lock up Smoke in the study with a saucer of milk before the fire, and then make a search of the house with Flame. The dog ran cheerfully behind him all the way while he tried the doors of the other rooms to make sure they were locked. He nosed about into corners and made little excursions on his own account. His manner was expectant. He knew there must be something unusual about the proceeding, because it was contrary to the habits of his whole life not to be asleep at this hour on the mat in front of the fire. He kept looking up into his master's face, as door after door was tried, with an expression of intelligent sympathy, but at the same time a certain air of disapproval. Yet everything his master did was good in his eyes, and he betrayed as little impatience as possible with all this unnecessary journeying to and fro. If the doctor was pleased to play this sort of game at such an hour of the night, it was surely not for him to object. So he played it, too; and was very busy and earnest about it into the bargain.
After an uneventful search they came down again to the study, and here Dr. Silence discovered Smoke washing his face calmly in front of the fire. The saucer of milk was licked dry and clean; the preliminary examination that cats always make in new surroundings had evidently been satisfactorily concluded. He drew an arm-chair up to the fire, stirred the coals into a blaze, arranged the table and lamp to his satisfaction for reading, and then prepared surreptitiously to watch the animals. He wished to observe them carefully without their being aware of it.
Now, in spite of their respective ages, it was the regular custom of these two to play together every night before sleep. Smoke always made the advances, beginning with grave impudence to pat the dog's tail, and Flame played cumbrously, with condescension. It was his duty, rather than pleasure; he was glad when it was over, and sometimes he was very determined and refused to play at all.
And this night was one of the occasions on which he was firm.
The doctor, looking cautiously over the top of his book, watched the cat begin the performance. It started by gazing with an innocent expression at the dog where he lay with nose on paws and eyes wide open in the middle of the floor. Then it got up and made as though it meant to walk to the door, going deliberately and very softly. Flame's eyes followed it until it was beyond the range of sight, and then the cat turned sharply and began patting his tail tentatively with one paw. The tail moved slightly in reply, and Smoke changed paws and tapped it again. The dog, however, did not rise to play as was his wont, and the cat fell to parting it briskly with both paws. Flame still lay motionless.
This puzzled and bored the cat, and it went round and stared hard into its friend's face to see what was the matter. Perhaps some inarticulate message flashed from the dog's eyes into its own little brain, making it understand that the programme for the night had better not begin with play. Perhaps it only realised that its friend was immovable. But, whatever the reason, its usual persistence thenceforward deserted it, and it made no further attempts at persuasion. Smoke yielded at once to the dog's mood; it sat down where it was and began to wash.
But the washing, the doctor noted, was by no means its real purpose; it only used it to mask something else; it stopped at the most busy and furious moments and began to stare about the room. Its thoughts wandered absurdly. It peered intently at the curtains; at the shadowy corners; at empty space above; leaving its body in curiously awkward positions for whole minutes together. Then it turned sharply and stared with a sudden signal of intelligence at the dog, and Flame at once rose somewhat stiffly to his feet and began to wander aimlessly and restlessly to and fro about the floor. Smoke followed him, padding quietly at his heels. Between them they made what seemed to be a deliberate search of the room.
And, here, as he watched them, noting carefully every detail of the performance over the top of his book, yet making no effort to interfere, it seemed to the doctor that the first beginnings of a faint distress betrayed themselves in the collie, and in the cat the stirrings