"Stand by to fire!" was heard through the 'tween decks, while an instant later there came a roar from the deck above, a trembling and shaking of the whole vessel which all could feel, and then the rumble of wheels as the guns were run in, sponged out and reloaded. By now the enemy had disappeared from sight behind a huge cloud of smoke, which, however, was whisked away swiftly by the breeze. It was a minute later, perhaps, when the French battleship was again visible, that Mr. Riley gave the order to fire, and Tom was witness of the result for the first time in his life. Jim touched the vent of the gun with his portfire, and instantly a squirt of flame and smoke shot upward. There was a huge commotion in the gun itself. Though braced into position by numerous cables it started backward, drawing them as tight as iron bars, while the wheels thudded heavily on their runners. The commotion was accompanied by that of every other gun on that deck in the broadside, while the ship herself shook from end to end. The roar of the discharge was indescribable, and deafened him, while the 'tween decks was instantly filled with volumes of sulphurous smoke. "Slack off! Haul her back, boys!" came in stentorian notes from Jim. "Run her in quick. Now with the sponge rods, and we'll have a second charge into her before the smoke's cleared." Five minutes later Mr. Riley's voice was heard. "Stand by for another broadside," he bellowed. "Double shot your guns next time--ah!" The frigate quivered from end to end; she seemed to have been struck by a cyclone. An iron hail beat on her sides, bursting them in in many directions, while splinters of iron and wood flew across the 'tween decks, striking men down in many directions. In one brief second the orderliness of the place was transformed to the most utter disorder, as the enemy had answered the frigate's broadside with one of her own. Tom looked about him wonderingly, dazed by the commotion and astounded at what he saw. For by now the wind blowing in at the open ports had cleared all the smoke away, and he could see all that was happening in the 'tween decks. There lay the gun on his right a wreck, turned on its side, its muzzle crushed out of sight, two of its wheels broken and half-buried in the deck. What had before been a square porthole was now an irregular, torn opening, through which a vast expanse of sea could be watched. But it was the poor wretches who had manned the gun who claimed his greatest attention. Five of them lay mangled upon the deck, with pools of blood accumulating about them and draining off towards the scuppers in trickles and streams. On the port side, opposite where the gun had stood, three men had been struck by the missile, and lay silent and motionless. Elsewhere there were rents in the side of the frigate, and men lay about in all postures, some moaning, others silent, nursing a wounded arm or leg. This was war; this was the treatment meted out by one nation to another.