Thus it was in the present instance. He had been unable to withstand the might of Cæsar and his legions, but Tunis was not the whole of Northern Africa, nor had quite all his eggs been kept in that one basket. He had kept fifteen galleys in reserve at Bona, and, in consequence, on his arrival there, was able to embark at once. This he did, and hardly had he done so when there appeared upon the scene fifteen galleys commanded by Adan Centurion and John Doria. Kheyr-ed-Din had had enough of fighting just for the present; his men and he were wearied out by the hardships of their flight, and accordingly he drew up his galleys under the fort at Bona and awaited an attack, should the enemy care to deliver one. But Adan Centurion’s heart failed him; to cut out the old Sea-wolf from under one of his own batteries was more than he had the stomach for, and he accordingly sailed away. “Fue sin duda la perdida grande” (this no doubt was a great pity), is the comment of Sandoval, who goes on to say that, had the Genoese been the men that they had been aforetime, this would never have been, and that they would have gone in and burnt or disabled the galleys of the corsair, slain their leader, or driven him ashore. Hot on the tracks of Adan Centurion and his nephew John came the veteran Andrea Doria with forty galleys, but he was too late, and the bird had flown; had it been he who had arrived in the first instance, then it is more than probable that matters would have turned out differently, and Kheyr-ed-Din had then and there terminated his career. It is true that Andrea possessed himself of Bona, and the Corsair King was shorn of yet another of his land-stations, but for the time he had cut himself adrift from the land, and had gone back to that element in which he was particularly at home. Doria left Bona in the charge of Alvar Gomez and a company of Spanish troops and then sailed away, if possible to find and capture Barbarossa, thus to set the seal of completeness on the victory which had been won by his master the Emperor. Another stronghold of the corsairs was now in most competent hands, as Alvar Gomez Zagal was one of the most renowned caballeros of Spain, son of that Pero Lopez de Horusco on whom the Moors themselves had bestowed the title of “Al Zagal,” or “The Valiant,” on account of his extraordinary bravery.