"You take my advice," said Captain Nicholson, as he headed the Y-3 for the spot where they had left the Sylph almost 40 hours before, "and stay on the top. Don't spend any more time on a submarine than you have to."

CHAPTER XXVI

CRUISING AGAIN

It seemed long hours to Frank and Jack before they once more made out the form of the Sylph, still cruising slowly to and fro close to where they had left her nearly two days before. The submarine drew up to her rapidly, and soon Captain Nicholson ordered a small boat launched.

Into this climbed first a seaman, then Captain Nicholson and Frank and, Jack. Lord Hastings greeted the boys warmly as they dropped over the rail of the Sylph.

"I was beginning to fear something bad gone wrong," he said. "I certainly am glad to see you back safe and sound. Was the raid a success?"

"It was indeed," replied Frank.

"Three Turkish cruisers sent to the bottom," said Jack briefly.

"Good!" cried Lord Hastings enthusiastically. "And the submarine wasn't damaged, eh?"

"Oh, yes, it was," broke in Captain Nicholson, and proceeded to relate the details of the encounter.