"Don't you go for to find fault with yourself," was the old gunner's reply. "I've known men who have been on the ocean for years to get sick the first day out. It's something they can't overcome, try their best. Why, I saw several officers of the marines as sick as so many dogs." Mess over, Walter went on deck for a breath of fresh air. They had just left a fog-bank and were standing out boldly into the ocean. The youth sauntered slowly forward as far as the rules permitted. "Sail O!" came suddenly from the military mast. "Where away?" demanded the officer on the bridge. "Dead ahead, sir." "Is she flying any flag?" "I think not, sir." "What does she look like?" "I can't make out very well, for she is running into the fog. I don't know but that she looks a bit like a warship," continued the lookout, after some hesitation. Without delay Commodore Schley and Captain Cook were notified. A brief consultation took place, and it was decided to pursue the unknown craft and find out what she was and where she was going. CHAPTER XII AN ADVENTURE OFF CHARLESTON The news that a strange vessel was in sight soon travelled throughout the ship, and all who could do so, crowded to the spar deck, while the officers stationed themselves on the forecastle, bridge and other points of vantage. There was no necessity to give the order, "Clear ship for action!" for the _Brooklyn_ was already cleared. Moreover, all the big guns contained their charges of eight-inch and other shells. The six-pounders and the Colts were now "provided," as it is termed, and then there was nothing to do but to lie by the guns and await further orders. Immediately upon notification that a strange sail was in sight, the flagship had run up a signal to the _Scorpion_, "Follow the unknown ship to the southward," and away darted the little gunboat at a rate of speed which caused the mighty waves of the Atlantic to wash her decks from end to end. Presently the sea proved almost too heavy for her and she had to reduce her speed, and the _Brooklyn_ went ahead, her high freeboard sending the water to port and starboard with scarcely an effort. Once, however, she did get caught below an unusually high crest and all on the forward deck received a liberal drenching. "Fire a shot across her bow!" was the order given, when the strange craft again emerged from a fog-bank, and boom! one of the smaller guns belched forth. The echoes of the shot had scarcely died away when the unknown ship was seen to hoist the British flag. "Only a Britisher!" sighed Caleb, when the news came down to him. "And I thought we were going to have the profit of a nice Spanish prize." Not caring to go entirely by the flag displayed, since the unknown ship had acted so strangely, the _Scorpion_ was again sent forward to make an investigation. In quarter of an hour she came up within hailing distance. "What ship is that?" was bawled out through a megaphone. "British steamer _Elsie_. What gunboat is that?"