There lived in the time of Harun al-Rashid a man named Ahmad al-Danaf and another Hasan Shúmán[FN#180] hight, the twain past masters in fraud and feints, who had done rare things in their day; wherefore the Caliph invested them with caftans of honour and made them Captains of the Watch for Baghdad (Ahmad of the right hand and Hasan of the left hand); and appointed to each of them a stipend of a thousand dinars a month and forty stalwart men to be at their bidding. Moreover to Calamity Ahmad was committed the watch of the district outside the walls. So Ahmad and Hasan went forth in company of the Emir Khalid, the Wali or Chief of Police, attended each by his forty followers on horseback, and preceded by the Crier, crying aloud and saying, “By command of the Caliph! None is captain of the watch of the right hand but Ahmad al-Danaf and none is captain of the watch of the left hand but Hasan Shuman, and both are to be obeyed when they bid and are to be held in all honour and worship.” Now there was in the city an old woman called Dalílah the Wily, who had a daughter by name Zaynab the Coney-catcher. They heard the proclamation made and Zaynab said to Dalilah, “See, O my mother, this fellow, Ahmad al-Danaf! He came hither from Cairo, a fugitive, and played the double-dealer in Baghdad, till he got into the Caliph’s company and is now become captain of the right hand, whilst that mangy chap Hasan Shuman is captain of the left hand, and each hath a table spread morning and evening and a monthly wage of a thousand dinars; whereas we abide unemployed and neglected in this house, without estate and without honour, and have none to ask of us.” Now Dalilah’s husband had been town-captain of Baghdad with a monthly wage of one thousand dinars; but he died leaving two daughters, one married and with a son by name Ahmad al-Lakít[FN#181] or Ahmad the Abortion; and the other called Zaynab, a spinster. And this Dalilah was a past mistress in all manner of craft and trickery and double dealing; she could wile the very dragon out of his den and Iblis himself might have learnt deceit of her. Her father[FN#182] had also been governor of the carrier-pigeons to the Caliph with a solde of one thousand dinars a month. He used to rear the birds to carry letters and messages, wherefore in time of need each was dearer to the Caliph than one of his own sons. So Zaynab said to her mother, “Up and play off some feint and fraud that may haply make us notorious”——And Shahrazad perceived the dawn of day and ceased saying her permitted say. When it was the Six Hundred and Ninety-ninth Night,