"I don't think so. But——"

At that moment came a knock on the cabin door and Luke Striker appeared.

"Excuse me, sir," he said, touching his cap. "But I've got something important to report."

"What is it, Striker?"

"I jess see that air Semmel go in and out o' the cook's galley."

"That is just what I am reporting!" cried Larry. "Did you see what he did, Luke?"

"No. He wasn't in there only a minit. It looked suspicious to me, though—with all hands gittin' sick from the grub."

"This is all the evidence I want," said Captain Ponsberry. "We'll soon make an end of this. Larry, send Semmel to me."

The young second mate left the cabin with Luke and both hurried toward the bow, where Semmel and Peterson were conversing in low tones.

"The captain wants to see you at once," said Larry to the bearded sailor.