"You're some scrapper, all right," he said, "but what are we going to do now?"

"Well," said Jack, "we seem to be in command of this submarine. I vote that we appropriate it for the British navy."

"Or the American navy," added Frank.

"Whichever you say," said Jack.

"In the meantime," said Williams dryly, "it might be well to tie up our pirate commander."

"Right you are," said Jack. "Frank, you see to that, will you? I want to go on deck and see whether my torpedo struck home."

Without waiting for a reply he mounted the ladder.

Frank turned to look about for strong cord with which to bind the pirate captain. As he did so he was startled by a cry from Captain Glenn at the wheel. He had replaced his revolvers, but now his hands dropped to them. Before he could draw, however, strong hands drew him back. Williams also was suddenly attacked from behind.

Captain Glenn released the wheel, but before he could produce a weapon, he found himself looking down the barrel of a shining automatic held by a member of the pirate crew.

What had happened was this: While Jack had struggled with the pirate chief, several members of the crew had watched the struggle from the safety of the darkened corridor. They had made no effort to interfere while Frank and Williams stood guard with their revolvers, but when Jack went on deck and Frank and Williams put away their weapons they crept close and sprang when the moment was propitious.