“But you can still listen in, can’t you?” asked Ned, after a pause. “Is the receiving apparatus damaged?”

“No, that’s still in good shape,” Hardy answered. “If, by any chance, some of our messages reached some station, and they can tell where to reply to us, and how, we may get an answer. We’re going to listen in from now on.”

“Well, let us hope that you hear something,” murmured Jerry.

“And all we can do is drift on,” said Ned drearily.

The day passed without anything happening. So many thoughts occupied the minds of the three Cresville boys that they almost forgot to speculate on the outcome of the information they had given their captain. They did not cease to wonder at times, though, as to who occupied the mysteriously guarded cabin, and they also tried to guess the reason for the peculiar actions of le cochon.

“Maybe he’s locked up there as a bomb-planter,” suggested Bob.

“It’s possible,” assented Ned.

“I wish Professor Snodgrass were here,” Bob went on.

“Why?” asked Jerry. “Do you think he could fix up the wireless, mend the broken boiler, or help us in any way?”

“Not exactly,” was the answer from the stout youth. “But he’s better fun than just standing about, waiting for something to happen.”