Meanwhile the two cruisers, each approaching the other at a speed of more than twenty miles an hour, had got within shot. A puff of smoke spurted out from the side of the latest comer. The well-aimed projectile passed fifty yards astern of the Lurline, and struck the advancing torpedo-boat square on the bow.

The next instant it was plainly apparent that there was nothing more to be feared from her. The solid shot had passed clean through her two sides. Her nose went down and her stern came up. Then bang went another gun from the British cruiser. This time the messenger of death was a shell. It struck the inclined deck amidships, there was a flash of flame, a cloud of steam rose up from her bursting boilers, and then she broke in two and vanished beneath the smooth-rolling waves.

Two minutes later the duel began in deadly earnest. The tricolor ran up to the masthead of the French cruiser, and jets of mingled smoke and flame spurted one after the other from her sides, and shells began bursting in quick succession round the rapidly-advancing Englishman. Evidently the Frenchman, with his remaining torpedo-boat, thought himself a good match for the British cruiser, for he showed no disposition to shirk the combat, despite the fact that he was so near to the cruising ground of a powerful squadron.

As the two cruisers approached each other, the fire from their heavy guns was supplemented by that of their light quick-firing armament, until each of them became a floating volcano, vomiting continuous jets of smoke and flame, and hurling showers of shot and shell across the rapidly-lessening space between them.

The din of the hideous concert became little short of appalling, even to the most hardened nerves. The continuous deep booming of the heavy guns, as they belched forth their three-hundred-pound projectiles, mingled with the sharp ringing reports of the thirty and forty pound quick-firers, and the horrible grinding rattle of the machine guns in the tops that sounded clearly above all, and every few seconds came the scream and the bang of bursting shells, and the dull, crashing sound of rending and breaking steel, as the terrible missiles of death and destruction found their destined mark.

Happily the Lurline was out of the line of fire, or she would have been torn to fragments and sent to the bottom in a few seconds. She continued on her course at her utmost speed, and the French cruiser was, of course, too busy to pay any further attention to her. Not so the remaining torpedo-boat, however, which, leaving the two big ships to fight out their duel for the present, was pursuing the yacht at the utmost speed of her forced draught.

Capture or destruction soon only became a matter of a few minutes. Tremayne, determined to hold on till he was sunk or sighted the air-ship, kept his flag flying and his engines working to the last ounce that the quivering boilers would stand, and the Frenchman, seeing that he was determined to escape if he could, opened fire on him with his twenty-pounder.

Owing to the high speed of the two vessels, and the rolling of the torpedo-boat, not much execution was done at first; but, as the distance diminished, shell after shell crashed through the bulwarks of the Lurline, ripping them longitudinally, and tearing up the deck-planks with their jagged fragments. The wheel-house and the funnel escaped by a miracle, and the yacht being end on to her pursuer, the engines and boilers were comparatively safe.

One boat had also escaped, and that was hanging ready to be lowered at a moment's notice.

At last a shell struck the funnel, burst, and shattered it to fragments. Almost at the same moment the man in the fore-cross-trees, who had stuck to his post in defiance of the cannonade, sang out with a triumphant shout—