The Sultan, Suleymān the Great, was little pleased to see a Moslem fortress summarily stormed by the troops of his ally, the Emperor. Charles replied that he had fought against pirates, not against the Sultan's vassals; but Suleymān could not perceive the distinction, and emphasized his disapproval by giving Dragut twenty galleys, which soon found their way to Christian shores. The lamentations of his victims roused Doria, who had the good fortune to surprise the Corsair as he was greasing his keels in the strait behind Jerba. This strait was virtually a _cul-de-sac_. Between the island and the great lake that lay behind it, the sea had worn a narrow channel on the northern side, through which light vessels could pass, with care; but to go out of the lake by the southern side involved a voyage over what was little better than a bog, and no one ever thought of the attempt. Doria saw he had his enemy in a trap, and was in no hurry to venture in among the shoals and narrows of the strait. He sent joyous messages to Europe, announcing his triumph, and cautiously, as was his habit, awaited events. Dragut, for his part, dared not push out against a vastly superior force; his only chance was a ruse. Accordingly, putting a bold face on the matter, he manned a small earthwork with cannon, and played upon the enemy, with little or no actual injury, beyond the all-important effect of making Doria hesitate still more. Meanwhile, in the night, while his little battery is perplexing the foe, all is prepared at the southern extremity of the strait. Summoning a couple of thousand field labourers, he sets them to work; here a small canal is dug--there rollers come into play; and in a few hours his small fleet is safely transported to the open water on the south side of the island. Calling off his men from the illusive battery, the Corsair is off for the Archipelago: by good luck he picks up a fine galley on the way, which was conveying news of the reinforcements coming to Doria. The old Genoese admiral never gets the message: he is rubbing his eyes in sore amazement, wondering what had happened to the imprisoned fleet. Never was admiral more cruelly cheated: never did Doria curse the nimble Corsair with greater vehemence or better cause.