Hardly knowing what to do our hero paused. Should he spring on the traitor and take the stolen supply of food and drink away, or call the sailors? Yet it might be advisable to see where Mr. Skeel had hidden his unfairly gotten store. So Tom waited.

It was agony to see the man eating and drinking before his eyes—eating and drinking when Tom himself was parched and half starved. And yet so cunning was the former professor that he did not gorge himself. He was evidently saving some for another time.

At last, as Tom watched, the professor made an end of his midnight meal and began to hide away his supply. And it was in the forward watertight compartment that he placed his store of food and water. It was there, where no one had thought of looking, that he kept them. The compartment was one that could be opened and used as a locker and this use Mr. Skeel had made of it. He had evidently taken the food when no one was observing him, and had emptied one of the water kegs into an unused tin can, and thus supplied himself against the time of need, while the others were on short rations. And yet with all this, he had daily drawn as much as had the others.

“The trickster!” murmured Tom. “I’m going to expose him!”

Our hero stepped forward. As he emerged in front of the sail the professor saw him and started. He tried to hide the fact that he had been eating, but he did not have time to stow away all the food in the compartment.

“I’ll ask you to hand those things over to me,” said Tom coldly.

“What things?”

“The food and water you stole from us.”

“Food and water?”