"There's nothing sure about anything," declared Jack. "But it's better than staying here all the rest of the night. Besides, we must hurry, you know."
"That's right," agreed Frank. "All right, then. So be it. Will you take your gun?"
"No use," said Jack. "It would be wet by the time I got there. Here I go."
"Good luck," Frank called after him.
Gently, Jack lowered himself over the side of the hydroplane, first divesting himself of his coat and shoes; then struck out for the disabled aeroplane.
Slowly the lad swam, for he did not wish to betray his coming by the sound of a splash. The distance was not great and a powerful swimmer, such as Jack, could cover it easily in a few moments.
Jack did not approach the enemy craft from the front. Giving it a wide berth, he swam around it and then, turning quickly, bore down upon the aeroplane more swiftly. He swam with his head barely above the water, and he was ready to dive immediately should he be sighted.
There was not a sound aboard the aeroplane as Jack drew close to it.
Raising his head slightly, he could see no human form.
"Funny," the lad muttered to himself. "Wonder where they keep themselves. No wonder we couldn't hit them."
He was within a few feet of the disabled craft and he now rose higher in the water to get a good look about. Still he saw no one.