"Why don't you do something, matey?" implored Dick, his hands shaking with excitement.

"I'm waiting for the right time," was the cool answer.

"We've only two revolvers," muttered Dick, "and there are three rifles in that boat. What can we do?"

"Nothing with firearms. We've got to make a different play, Dick."

A moment longer Matt waited, studying the approach of the launch with calculating eyes; then, suddenly, he turned.

"In with the anchors, Clackett, you and Carl," he called. "See how quick you can get them off the bottom. Start your engine, Gaines," he added.

The lifting of the anchors caused the Grampus to drift with the current. But only for a moment. Soon the screw took the push and Dick, under orders from Matt, headed the craft up-stream and the propeller worked just fast enough to hold her steady.

"Anchor's stowed!" called Clackett.

"Same vay mit me!" came from Carl.

"Jump for the tank room, Clackett!" called Matt. "Carl, up here with you."