Again, about half-past nine, the gun belched forth a tongue of flame, and the report sounded far over the silent waters. All was excitement on deck, for it was a matter of speculation whether an answering shout or gunshot could be heard above the roar and throbbing of the engines. Ten, eleven o'clock passed, and presently the third gun was exploded so suddenly that the ladies were startled. Again we listened, but could hear nothing. Kouaga fumed and cursed the evil-spirit for our misfortune, while Omar, finding that we were to be taken to Cape Coast Castle, imparted to me his fear that the fortnight's delay it must necessarily entail, would be fatal to his mother's plans. We were hanging over the taffrail together gazing moodily into the darkness, having given up all hope of getting ashore at the Lahou River, when suddenly about half a mile from us we saw a flash, and the report of a rifle reached us quite distinctly, followed by distant shouting. "There they are!" cried Omar excitedly. "They've hailed us at last!" But ere the words had fallen from his lips we heard the bell in the engine-room ringing, and next second the steam was shut off and we gradually hove to. Kouaga was at our side almost immediately, and we found ourselves surrounded by passengers taking leave of us. Our boxes were brought up by a couple of sailors, and after about a quarter of an hour's wait, during which time the vessel rose and fell with the swell, the craft that had hailed us loomed up slowly in the darkness, amid the excited jabber of her demoniac-looking crew. She was a large native vessel, brig-rigged, and as dirty and forbidding-looking a craft as you could well see anywhere. Kouaga hailed one of the black, half-clad men on board, receiving a cheery answer, and presently, having taken leave of the captain and those around us, we climbed over the bulwarks and sprang upon the deck of the mysterious ship. As Omar alighted the whole crew made obeisance to him, afterwards crowding around me, examining me by the lurid light of the torches they had ignited. Very quickly, however, several boxes belonging to Kouaga were lowered, the moorings were cast off, and slowly the great mail steamer with its long line of brilliantly-lit ports looking picturesque in the night, moved onward. "Good-bye," shouted a voice from the steamer. "Good-bye," I responded, and as the steamer's bell again rang out, "full speed ahead," I knew that the last tie that bound us to European civilization was severed. CHAPTER IV. A STRANGE PROMISE.