It had been impossible to hinder her from getting in, when she had run down to the landing while Zeno was changing his clothes; there had not been time, and she had not waited to argue the question, but had simply whispered to Gorlias that she was going, and that he must hide her as well as he could, and say nothing. He was not a man to be easily surprised, and he reflected that as she was in the secret, and as it was her influence that had decided Zeno to act at last, she might possibly be useful; as indeed she afterwards proved herself to be. Besides, Gorlias thought it likely that Zeno had told her all his plans, although he did not wish to take her with him; for the astrologer was not at all clear as to the relations existing between the master and the slave. She sat alone and shivering in the dark. Gorlias had left her and had hastened back to the foot of the tower to remove all traces of the unsuccessful attempt before daybreak, by throwing the dead body into the water with a weight, and carrying off the gear that had been left lying on the sloping pier. Zoë thought he must be of iron. He had been some time in the water in his clothes, and had probably been more or less bruised in the struggle, and in rolling down the stones, if not by the fall at the end. But he seemed as calm and collected as ever, and apparently had no idea of drying himself before morning. Zoë thought of him only very vaguely as of a person connected with Zeno, round whom alone the whole world had moved since she had known that he loved her; and in her imagination she followed him on after he had reached the tower window the second time and had whistled the call that told her he was safe so far. It was agonising to think of his danger. She did not believe that he could possibly escape from within the prison through the palace precincts; in some way or other he must succeed in climbing down the wall again, and Gorlias would find him and bring him home. But when she had said this to the astrologer, he had shaken his head. There were good reasons why Zeno should not attempt the perilous descent that night, when there had just been an alarm from below of which it was not possible to let him know the result. Moreover, no one knew whether the man whom Zoë had struck had sunk and was drowned, or had parried the blow with his arm and had succeeded in swimming ashore. Neither Gorlias nor Zoë knew that yet, and they might never know it. She waited, but not a sound disturbed the silence of the chilly night. Within the house every one was sleeping; the two little slave-girls, curled up on their carpet in the corner, where Zoë had left them, would not wake till dawn; Omobono slept the sleep of the just in his small bedroom behind the counting-house, dreaming of the mysteries of four toes and five toes, and quenching his insatiable curiosity at last in the overflowing fountain of fancy. As for the servants and slaves, all slumbered profoundly, after the way of their kind.