"Hang the man who invented conning-towers," he muttered angrily. "Keep a lookout up there, Mr. Wright," he shouted; "I can see very little."

The officer half saluted, half nodded, and ran up the stair, while Captain Blake rang "full speed" to the engines. The indicators on the wall showed increased revolution, and he resumed his place at the peep-hole. In a few moments Mr. Wright reappeared with a message from the flag-ship to "starboard helm; follow ship ahead."

"All right. Watch out up there; report all you see," he answered. Peeping out, he saw the Lancaster and the Cumberland sheering to port, and he moved the lever of the steering-telegraph. There was no answering ring. "Shot away, by George," he growled. He yelled into a supplementary voice-tube to "starboard your wheel—slowly." This was not answered, and with his own hands he coupled up the steering-wheel on the binnacle and gave it a turn. It was merely a governor, which admitted steam to the steering-engine, and there was no resisting pressure to guide him; but a helm indicator showed him the changed position of the rudder, and, on looking ahead, he found that she answered the wheel; also, on looking to starboard, he found that he had barely escaped collision with the Montrose, whose fire he had been masking, to the scandal of the admiral and the Montrose's officers.

A little unnerved, Captain Blake called down a seven-inch tube to an apartment in the depths,—a central station of pipes and wires, to be used as a last resort,—directing the officer on post to notify the chief engineer of the damage, and to order the quartermasters in the steering-room to disconnect their wheel and stand by. This was answered, and the captain resumed his lookout, one hand on the wheel.

"Reduces the captain of the ship to a helmsman," he muttered.

The navigating officer approached, indicating by gesture and expression his intention of relieving him, but was waved away.

"I want the wheel myself," shouted the captain. "Devil take a conning-tower, anyhow! Keep a lookout to port. But say, Dalrymple, send up for Finnegan. I'll not have him killed. Get him down, if he's alive."

Mr. Dalrymple ascended the stair to pass the word for Finnegan, but did not come down. He had reached the signal-platform, where one quartermaster lay dead, and was transmitting the order to Mr. Wright, when a heavy shell struck the mast, above their heads and below the lower top, exploded inside, killed the three men on the platform, and hurled the upper part of the mast, with both tops full of dead men and living, high in air. The conning-tower was filled with gas and smoke; but Captain Blake, though burned and nearly stripped of clothing by the blast of flame, was uninjured by the flying fragments of the shell. Smarting, gasping, and choking, fully aware of the complete destruction above, his mind dwelt for an instant on the man who had once saved his life, whom he had sentenced to death. He looked up the hollow within the wrecked staircase, but saw nothing.

Mr. Clarkson, however, happened to be looking through an upper peep-hole in the sighting-hood at this moment, and saw the upper half of the mast lift and turn; also, dimly through the smoke, he noticed, among the dozen of men hurled from the tops, the blue-shirted figure of one whom he knew to be Finnegan, clinging at arm's-length in mid-air to a Gatling gun, which had been torn from its fastenings. Then the smoke thickened and shut out the view; but a moment later he heard the rattling crash of the mast as it fell upon the superstructure beneath.

"The whole mast's gone, boys," he shouted to his crew—"both tops. Finnegan's done for."