At Algiers most of the regular oar-slaves had been transferred into the Peñon, the squat Spanish fortress in the middle of the harbor, and locked up, for the time being, in places where they could not tell the tale of what they had seen. Empty wooden crates had come back, and the Cabal had busied itself packing the gold bars into them and stuffing straw in between so that they would not clank. Only after the crates had been nailed securely shut had fresh—and ignorant—oar-slaves been brought aboard.