It was while he was thinking in this way that he felt a startling thing. It seemed almost as if something touched him. It made him jump, though the touch was so light and soft that it was scarcely a touch at all, in fact he could not be sure that he had not imagined it. He stood up and leaned against the wall again.
Perhaps the suddenness of his movement placed him at some angle he had not reached before, or perhaps his eyes had become more completely accustomed to the darkness, for, as he turned his head to listen, he made a discovery: above the door there was a place where the velvet blackness was not so dense. There was something like a slit in the wall, though, as it did not open upon daylight but upon the dark passage, it was not light it admitted so much as a lesser shade of darkness. But even that was better than nothing, and Marco drew another long breath.
“That is only the beginning. I shall find a way out,'' he said.
“I SHALL.''
He remembered reading a story of a man who, being shut by accident in a safety vault, passed through such terrors before his release that he believed he had spent two days and nights in the place when he had been there only a few hours.
“His thoughts did that. I must remember. I will sit down again and begin thinking of all the pictures in the cabinet rooms of the Art History Museum in Vienna. It will take some time, and then there are the others,'' he said.
It was a good plan. While he could keep his mind upon the game which had helped him to pass so many dull hours, he could think of nothing else, as it required close attention--and perhaps, as the day went on, his captors would begin to feel that it was not safe to run the risk of doing a thing as desperate as this would be. They might think better of it before they left the house at least. In any case, he had learned enough from Loristan to realize that only harm could come from letting one's mind run wild.
“A mind is either an engine with broken and flying gear, or a giant power under control,'' was the thing they knew.
He had walked in imagination through three of the cabinet rooms and was turning mentally into a fourth, when he found himself starting again quite violently. This time it was not at a touch but at a sound. Surely it was a sound. And it was in the cellar with him. But it was the tiniest possible noise, a ghost of a squeak and a suggestion of a movement. It came from the opposite side of the cellar, the side where the shelves were. He looked across in the darkness saw a light which there could be no mistake about. It WAS a light, two lights indeed, two round phosphorescent greenish balls. They were two eyes staring at him. And then he heard another sound. Not a squeak this time, but something so homely and comfortable that he actually burst out laughing. It was a cat purring, a nice warm cat! And she was curled up on one of the lower shelves purring to some new-born kittens. He knew there were kittens because it was plain now what the tiny squeak had been, and it was made plainer by the fact that he heard another much more distinct one and then another. They had all been asleep when he had come into the cellar. If the mother had been awake, she had probably been very much afraid. Afterward she had perhaps come down from her shelf to investigate, and had passed close to him. The feeling of relief which came upon him at this queer and simple discovery was wonderful. It was so natural and comfortable an every-day thing that it seemed to make spies and criminals unreal, and only natural things possible. With a mother cat purring away among her kittens, even a dark wine-cellar was not so black. He got up and kneeled by the shelf. The greenish eyes did not shine in an unfriendly way. He could feel that the owner of them was a nice big cat, and he counted four round little balls of kittens. It was a curious delight to stroke the soft fur and talk to the mother cat. She answered with purring, as if she liked the sense of friendly human nearness. Marco laughed to himself.
“It's queer what a difference it makes!'' he said. “It is almost like finding a window.''
The mere presence of these harmless living things was companionship. He sat down close to the low shelf and listened to the motherly purring, now and then speaking and putting out his hand to touch the warm fur. The phosphorescent light in the green eyes was a comfort in itself.
“We shall get out of this--both of us,'' he said. “We shall not be here very long, Puss-cat.''
He was not troubled by the fear of being really hungry for some time. He was so used to eating scantily from necessity, and to passing long hours without food during his journeys, that he had proved to himself that fasting is not, after all, such a desperate ordeal as most people imagine. If you begin by expecting to feel famished and by counting the hours between your meals, you will begin to be ravenous. But he knew better.
The time passed slowly; but he had known it would pass slowly, and he had made up his mind not to watch it nor ask himself questions about it. He was not a restless boy, but, like his father, could stand or sit or lie still. Now and then he could hear distant rumblings of carts and vans passing in the street.
There was a certain degree of companionship in these also. He kept his place near the cat and his hand where he could occasionally touch her. He could lift his eyes now and then to the place where the dim glimmer of something like light showed itself.
Perhaps the stillness, perhaps the darkness, perhaps the purring of the mother cat, probably all three, caused his thoughts to begin to travel through his mind slowly and more slowly. At last they ceased and he fell asleep. The mother cat purred for some time, and then fell asleep herself.