"Yes, there is a strong current. You see, the rivers that fall into the Mediterranean ain't sufficient to make up for the loss by evaporation, and so there is always a current running in here. It is well enough for us, going east; but it is not so pleasant, when you want to come out. Then you have got to wait till you can get a breeze, from somewhere about east, to carry you out. I have been kept waiting, sometimes, for weeks; and it is no unusual thing to see two or three hundred ships anchored, waiting for the wind to change." "Are there any pirates over on that side?" Bob asked, looking across at the African coast. "Not about here. Ceuta lies over there. They are good friends with us, and Gibraltar gets most of its supplies from there. But once through the Straits we give that coast a wide berth; for the Algerine pirates are nearly as bad as ever, and would snap up any ship becalmed on their coast, or that had the bad luck to be blown ashore. I hope, some day, we shall send a fleet down, and blow the place about their ears. It makes one's blood boil, to think that there are hundreds and hundreds of Englishmen working, as slaves, among the Moors. "There, do you see that projecting point with a fort on it, and a town lying behind? That is Tarifa. That used to be a great place, in the time when the Moors were masters in Spain." "Yes," the captain, who had just joined them, said. "Tarif was a great Moorish commander, I have heard, and the place is named after him. Gibraltar is also named after a Moorish chief, called Tarik ibn Zeyad." Bob looked surprised. "I don't see that it is much like his name, captain." "No, Master Repton, it doesn't sound much like it, now. The old name of the place was Gebel Tarik, which means Tank's Hill; and it is easy to see how Gebel Tarik got gradually changed into Gibraltar." In another two hours the Straits were passed, and the Rock of Gibraltar appeared, rising across a bay to the left. Illustration: View of Gibraltar from the Mediterranean. View of Gibraltar from the Mediterranean. "There is your destination, lad," the captain said. "It is a strong-looking place, isn't it?" "It is, indeed, Captain," Bob said, taking the captain's glass from the top of the skylight, and examining the Rock. "You see," the captain went on, "the Rock is divided from the mainland by that low spit of sand. It is only a few hundred yards wide, and the sea goes round at the back of the Rock, and along the other side of that spit--though you can't see it from here--so anything coming to attack it must advance along the spit, under the fire of the guns. "There, do you see that building, standing up on the hill above the town? That is the old Moorish castle, and there are plenty of modern batteries scattered about near it, though you can't see them. You see, the Rock rises sheer up from the spit; and it is only on this side, close to the water's edge, that the place can be entered.