“Look at the tanks!” cried Lord Hastings, and Jack rushed to obey.

He came running back an instant later.

“A miracle,” he cried. “The tanks are full. That is what brought us down.”

Lord Hastings stared at him in surprise.

“Impossible,” he said. “How could the tanks be full?”

“I don’t know, sir,” replied Jack, “but they are.”

Lord Hastings thought hard and fast.

“Where did the shell strike us?” he asked at length.

“Just forward of the tanks, sir.”

“That may have had something to do with it,” mused the commander, “although I can’t see how. Give the command to rise two fathoms, Mr. Templeton.”