“I didn’t see any such boat,” was the reply.

“Well, crawl into a bunk here,” Clay finally said, “and we’ll tell you in the morning what we are going to do.”

The boy did as instructed, and was, apparently, soon sound asleep. Then the boys went out to the deck again and sat in the brilliant moonlight watching the settlement on the right bank.

There is a railway station at St. Luce, and while they watched and talked, the shrill challenge of a locomotive came to their ears, followed by the low rumbling of a heavy train.

The prow light was out, and the cabin light was out, and the cabin was dark now, because when the boys had sought their bunks, a heavy curtain had been drawn across the glass panel of the door. From where the boys sat, therefore, they could see nothing of the interior of the cabin.

Five minutes after the door closed on the stranger, he left his bunk and moved toward the rear of the cabin. Against the back wall, stood a square wooden table, and upon this table stood an electric coil used for cooking. Above the table, was a small window opening on the after deck.

The catch which held the sash in place was on the inside and was easily released. The boy opened it, drew the swinging sash in, passed through the opening, and sprang down to the deck.

Reaching the deck, the visitor, as though familiar with the situation, ran his hand carefully about his feet feeling for a closed hatch. He found it at last and, lifting it, peered into the space set aside for the electric batteries and the extra gasoline tanks.

Reaching far under the planking, he found what he sought—the wire connecting the electric batteries with the motors. Listening for a moment to make sure that his motions were not being observed, he drew a pair of wire clippers from a pocket and cut the supply wire. Only for the fact that the lights on the boat were all out, this villainous act would at once have been discovered. As it was, the boys remained at the prow believing the visitor was still asleep in his bunk.

This act of vandalism accomplished, the boy dropped softly over the stern into his canoe, still trailing in the rear of the motor boat. Once in the canoe, he laid the paddle within easy reach and propelled the boat along the hull of the Rambler, toward the prow with his hands. Once or twice discovery seemed to the boy to be certain, for Captain Joe came to the gunwale of the boat and sniffed suspiciously over the rail.