"Right-o," assented the Patrol Leader, pushing away his cup, saucer, and plate. "I'll come and bear a hand. Have you reported to Mr. Armitage?"

The Scoutmaster received the news without expressing any suggestion.

"Carry on," he remarked.

The Sea Scouts accordingly "carried on". They had but one red lamp on board in addition to the port light. Two red masthead lights were required to indicate that the Olivette was not under command. It was the Tenderfoot who solved the problem by suggesting that the white masthead light should be covered with the fold of the Red Ensign.

The "not under command" lights were hoisted, and the port and starboard ones extinguished. The ignition to the motor was switched off, and Stratton, Roche, and Flemming proceeded to take down the carburetter, while Woodleigh held the electric torch to enable them to see what they were doing.

They worked methodically, placing a piece of canvas under the carburetter to catch any nut that might be accidentally dropped, while all the loose parts were carefully placed in a small tin box.

The float was deftly removed.

"It feels suspiciously heavy," declared Flemming. "Yes, it's chock full of paraffin or petrol."

"Take it into the after-cabin," said Peter. "We'll solder it there. It will be a jolly sight safer away from the engine-room. Get the Tinol box out, Dick."

The first part of the operation was the boiling of the float. The hot water would not only cause the confined air to escape and indicate the position of the leak, it would also expel the petrol.