And Abu-l-Hasan told him, but added with a smile: “Alas! this night must end our acquaintance, for I have so vowed it.” Then he set forth the nature and the cause of his vow, at which Er-Rashid laughed heartily and said, “By Allah! brother; I do not blame thee!”

After this came the slave girls and spread a banquet before them, and they partook of it, Abu-l-Hasan giving the choicest portions to the Khalifeh. When they had finished their repast Abu-l-Hasan brought out his oldest and most fragrant wines, laid the wine-cloth himself, and, having lighted some small lamps and candles, filled a goblet and raised it to the Khalifeh. “Best of boon companions,” he said, “away with ceremony! Regard me as thy faithful slave and may I never be compelled to grieve thy loss.” With this he drained the goblet, and, still acting the part of the Khalifeh’s servant, filled another for his master and handed it to him. This pleased the Khalifeh greatly. He appreciated such delicate attention. He took the goblet and drank, saying within himself, “By Allah! a good return will I make him for this.” Abu-l-Hasan continued to wait upon his guest in humble fashion, and the Khalifeh enjoyed his hospitality to the full. If his host had known him to be Er-Rashid himself—which he did not—he could not have entertained him better.

At the hour of midnight the Khalifeh spoke to his host in serious tones. “O, Abu-l-Hasan,” said he, “tell me what thing thou dost most desire.”

“Why, my master,” replied Abu-l-Hasan, “if thou wouldst know: my most constant prayer is that I may be rid of the incessant annoyance imposed upon me by the Imam and the four Sheiks of the neighbouring mosque. When they hear the sound of music and revelry at night they inform against me, so that I am harassed by heavy fines. By Allah! if I had my way I would give each of them a thousand lashes.”

“May Allah grant thy prayer!” said Er-Rashid, and, unobserved, he dropped a lozenge into his host’s wine and handed him the goblet, bidding him drink.

Abu-l-Hasan did so and speedily thereafter fell sound asleep. The Khalifeh at once summoned his servants, who, having followed him at a little distance, were waiting without. He commanded them to place Abu-l-Hasan upon a mule and convey him to the Palace. This was soon done.

Later, when the Khalifeh had rested somewhat, he summoned the most important officials of his Court, and, indicating the sleeping figure of Abu-l-Hasan, said to them, “In the morning you will find this young man upon the royal couch. When he awakes, see to it that you obey his lightest wish as you would my own; salute him as the Khalifeh and make obeisance before him.” To his women slaves he gave similar instructions and ordered them to address Abu-l-Hasan as the Prince of the Faithful. Then Er-Rashid retired to another part of the Palace and slept.

In the morning when Abu-l-Hasan awoke upon the royal couch he stared in amazement at the attendants making obeisance before him. “O, Prince of the Faithful! it is the hour of morning prayer,” said a beautiful slave girl, stepping forward. Abu-l-Hasan laughed, for he knew not what to make of it. Then he rubbed his eyes and gazed around upon the sumptuous magnificence of the apartment with its gorgeous roof and walls, its rich silk hangings, its vessels of gold and sparkling crystal, its jewelled furniture, ornaments and luxurious carpets. “By Allah!” he gasped; “have I attained to the fragrant Paradise, or do I dream?”

With that he closed his eyes as if to hold the dream in further slumber, but a eunuch advanced and kissed the ground before the royal couch. “O, Prince of the Faithful!” he said, humbly; “bethink thee of thy usual custom.” At this Abu-l-Hasan, sorely perplexed, opened his eyes again very slowly, and saw the rich trappings of the couch whereon he lay. Little by little he opened them until at last they were wide with wonder, for this was no dream—the voice of the eunuch who had spoken, the faces and forms of the attendants, the royal splendour of the place—all were as real as he could wish; and yet—yet—he raised his hand to his mouth and bit one of his fingers—hard; then cried out with sudden pain. Angrily he raised himself on one elbow, and, addressing one of the female slaves, “Come here!” he said. “My lord, I am always at thy service,” she answered, drawing near. “What is thy will, O Prince of the Faithful?” “Tell me,” he said, “who am I, and where am I?” “Thou art the Prince of the Faithful,” answered she. “Thou art in thy palace and upon thy royal couch.” “Nay, nay,” said he; “I sleep. Methinks I dream, or—” he went on, half to himself,—“Can it be? My guest—he bade me drink and—what subtle enchantment is this? Am I now Abu-l-Hasan dreaming I am the Khalifeh, or was I, last night and heretofore for many nights, the Khalifeh dreaming he was Abu-l-Hasan?” And the Khalifeh himself, observing him all the while from a sheltered nook, revelled in the perplexity of his guest.