"For some five months I have been Thiuli's slave; yet from the first I have planned to escape, but it was too much of a task for me to attempt alone. In the inner court of the castle you must have noticed a fountain that throws the water in a cascade from ten pipes. This fountain impressed me strongly, because I remembered a similar one in my father's house, the water of which was brought through a large aqueduct. In order to learn whether this fountain was built in the same way, I one day praised its beauty to Thiuli, and asked who had constructed it. 'I built it myself,' answered he; 'and what you see here is the least part of the work, as the water is brought from a brook, a thousand paces away, through an arched viaduct at least high enough for a man to walk in. And the construction of all this I directed myself.' "Since hearing this, I have often wished for the strength of a man to pull out a stone in the side of the fountain, and thereby escape. I will now show you the aqueduct, through which you can obtain entrance to the castle at night, and set your sister free. But you ought to have at least two men with you, in order to overpower the slaves who watch the seraglio at night." My brother Mustapha, although he had seen his plans twice frustrated, plucked up courage once more at these words, and hoped, with Allah's assistance, to carry out the scheme of the slave. He promised to see that she arrived safely at her home if she would assist him to enter the castle. But one point caused him some little perplexity: where should he obtain two or three men upon whom he could depend? Just then Orbasan's dagger occurred to him, and the promise he had received from the bandit that, in case of need, he would hasten to his assistance; and he therefore left the vault, in company with Fatima, to hunt up the robber. In the same village which had witnessed his transformation into a physician, he bought a horse with what money remained to him, and procured a lodging for Fatima with a poor woman who lived in the suburb. He then hastened toward the hills where he had first met Orbasan, and arrived there in three days. He soon found their tents, and appeared unexpectedly to Orbasan, who greeted him with friendliness. He gave an account of his failures, at which the grave Orbasan could not refrain from laughing now and then, especially when he thought of the physician Chakamankabudibaba. But he was terribly enraged over the treachery of the ugly little monster, Hassan, and swore he would hang him up wherever he found him. He also promised that when my brother had refreshed himself after the fatigue of his journey, he would be ready to assist him.