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.
Once, Clay left his place at the prow and looked over into the stream, but the moon was in the south and a heavy shadow lay over the water on the north side, so the dark object slipping like a snake to do an act of mischief reached the prow unseen.
At that moment the boys left the prow and moved toward the cabin door. In another instant they would have entered and noted the absence of their guest, but Alex paused and pointed to lights moving in the village of St. Luce.
"There's something going on over there," he said "and I believe it has something to do with what we've been bumping against. There's the letter from the canoe, and the warning from the boat, and the boy dropping out of the darkness on deck, and the signal lights, and now the stir in the village. Some one who wishes us ill is running the scenes to-night, all right."
While the boys stood watching the lights of St. Luce, Max caught the manila cable which held the motor boat and drew his canoe up to it. Cutting the cable, strand by strand, so as to cause no jar or sudden lurching of the boat, he left it slashed nearly through and, leaving the strain of the current to do the rest, worked back through the shadow and struck out up stream.
Standing in the door of the cabin, the boys felt the boat sway violently under their feet, then they knew from the shifting lights in the village that they were drifting swiftly down with the current. Clay sprang to the motors, but they refused to turn.