“For the sake of humanity we can’t leave ’em there,” said Jerry. “We’ve got to save ’em; but how? We can’t go down there among all those snakes.”

There was a pause, while the airship hovered over the hut on the island, in the midst of the snakes. The three conspirators eagerly watched the motor boys.

“Those were the three persons we saw in the boat in the rapids,” said Bob in a low voice, and his chums nodded.

“Can we save them?” inquired Jerry.

“Yes!” cried the professor. “There is only one way.”

“How?” demanded the tall lad.

“By live wires! Take some uninsulated electrical wires, Jerry. Attach them to the dynamo, let them dangle down from the airship, and then sail over the mass of serpents. The wires will hit the snakes and electrocute them. It’s the only way!”

“Then we’ll do it!” cried Jerry. “Come on, boys, and we’ll drop the live wires, and save Noddy Nixon!” A moment later several coils of copper conductors, each one carrying a deadly current, were being dropped toward the surface of the island.