But it was not in him to waste time in idly reflecting on the detestable irony of his fate, when there was any possibility that his own action might help him. He rose again and took up the lantern to make a systematic examination of his prison. After all, Tocktamish and his soldiers must have acted on the spur of the moment, and though they evidently knew the entrance to the cistern, and had probably been aware that it had a door which could be shut, it was not impossible that there might be another way out which they had overlooked in their haste.

But Zeno could find none, and the place was not so large as he had at first supposed. He counted eight columns in each direction, which gave sixty-four for the whole number, and he guessed the cistern to be about one hundred feet square. The walls were covered with smooth cement, to which the dust hardly adhered, and which extended upwards to the spring of the vault, at the same level as the capitals of the columns. There was no opening to be found except the one entrance. Zeno followed the steep inclined passage upwards till he reached the closed door which, as he well understood, must be at a considerable distance from the cistern. It was made of oak, and though it might have been in its place a couple of hundred years it was still perfectly sound. The lock had been wrenched off long ago, probably to be used for some neighbouring house, but Zeno had heard the stones rolled up outside the door, and even before he tried it, he knew that he could not make it move.

He wondered whether Tocktamish had set a watch, and he called out and listened for an answer, but none came; he shouted, with the same result. Then he took up his lantern and went down again, for it was clear that the soldiers thought him so safely confined that it would not be necessary to guard the entrance. Since that was their opinion, there was nothing to be done but to agree with them. Zeno lay down in the dust, rolled himself in the spare cloak, placing a doubled fold of it between his head and the base of a column, and he was soon fast asleep.

CHAPTER XIV

There was consternation in little Omobono's face the next morning when he learnt that his master had gone out during the night, and had not come home. The secretary would not believe it at first, and he went himself to Zeno's bedroom and saw that the couch had not been slept on; he could tell that easily, though it was not a bed but a narrow divan covered with a carpet; for the two leathern pillows were not disturbed, and the old dark red cloak which Zeno always used as a covering was neatly folded in its place. It had been with him through the long campaign in Greece, and he had the almost affectionate associations with it which men of action often connect with objects that have served them well in dangerous times.

Zeno had not slept at home, and he had changed his clothes before going out. Questioned by Omobono, Vito could not say with any certainty what the master had put on; in fact, he could not tell at all. All the cloth hose and doublets and tunics were in their places in the cedar wardrobes and chests of drawers, except those he had taken off, which lay on a chair. It looked, said the servant, as if the master had gone out without any clothes at all!

Omobono felt that if he had been a bigger man he would have boxed the fellow's ears for the impertinent suggestion. But it was not quite safe, for the man was a big Venetian gondolier and sailor. Besides, as he went on to explain, the master had often gone down to the marble steps at dawn for a plunge and a swim, with nothing but a sheet round him, coming back to dress in his room. Perhaps he had done so now, and perhaps——

The man stopped short. Perhaps Zeno was drowned. He looked at Omobono, but the secretary shook his head, and pointed to the undisturbed couch. Zeno would certainly not have gone out bathing before going to bed. Neither of them thought of looking into the small military trunk which stood in a dark corner, and from which Zeno had taken the leathern jerkin and stout hose which he had put on for the expedition.

Omobono had, of course, already questioned the slave-girls. They told what they knew, that the master had supped upstairs, and had dismissed them. When they came back to the room he was gone, they said; and this was true, since they had slept all night. The Kokóna was now asleep, they added; but they did not say that she was sleeping dressed as she had been on the previous evening, and looked very tired, for that was none of the secretary's business.

Omobono went up and down the stairs almost as often that morning as on the day of Zoë's first coming, and again and again he instructed Yulia to call him when her mistress awoke. The answer was always the same: the Kokóna was still asleep, and the secretary should be called as soon as she rose. At last he began to think that she, too, had left the house, and that the girls were in the secret, and he threatened to go in and see for himself. To his surprise Yulia stood aside to let him pass, laying one finger on her lips as a warning to make no noise; for the little slave saw well enough that he suspected her of lying, and she was afraid of him in Zeno's absence. Seeing that she did not oppose him, he was convinced, and did not go in.