"You haven't any license to joke me about that knockdown, Bart Brittler! I noticed you weren't in any hurry to mix it with him."

There was a moment of silence.

"What's that?" cried the captain, suddenly. "Sounds like water running in! Hope the old scow isn't leaking. Let's have that lantern!"

Through the thin planking Percy could hear him open the little door and crawl up into the bow. Then his faint, muffled voice reached the eagerly listening boy.

"There's a bad leak here! Come in a minute!"

Into Percy's brain flashed a sudden idea that left him trembling with excitement. Could he do it? If he tried, he must not fail. An instant resolution set him dragging himself toward the stern.

Clutching the rim of the wash-board, he flung up one leg, caught his toe, and raised himself, dripping. A moment later he was in the standing-room.

He looked down into the cabin. The light of the lantern, shining round a body that almost filled the little door to the bow, showed a pair of legs backing out.

The die was cast. It was too late now for Percy to withdraw. His only safety lay in action.

Like lightning he slammed and hooked the double doors of the companionway, pulled the slide over, and snapped the padlock. Dolph and Brittler were prisoners on board the Barracouta!