“That’s what we were afraid of,” said Jerry. “We didn’t want to get in wrong. But we thought it best to speak after we saw the marines put on duty at the cabin, for we thought it might be of more importance than it seemed in the beginning.”

“Yes,” answered the captain, noncommittally. “Well, I’ll let you know when your further testimony is needed. Now don’t forget to keep still about this.”

He dismissed them with a smile, and the boys, feeling they had done all in their power to set things right and to prevent any further outrages, in case it really should turn out that an attempt had been made to blow up the ship, went up on deck.

“I’m glad that’s off my mind,” remarked Ned.

“So’m I,” added Bob. “There must be something in it all right, or they wouldn’t be guarding that cabin.”

“It’s queer, to say the least,” admitted Jerry. “If we could only know——”

“Hark! What’s that?” interrupted Ned, as they neared the head of the companionway.

“The wireless!” cried Bob. “It’s working again!”

And to the ears of the boys came the well-known crackle that told of electrical impulses being sent off into space.

Quickly the three chums looked about them when they reached the deck. A group around the wireless room testified that in some manner the disabled machinery had been put in operation again.