During the remainder of the afternoon the boys had nothing to do save discuss the chances of taking Sam a prisoner, and when they were tired of this Jet suggested that each take a nap.
"From this out we shall have to keep our eyes open pretty much all the time, unless Sam succeeds in getting the best of us, and it will be a good idea to scoop in what rest we can now. You lie down first, and I'll stand watch."
The small guide was quite ready to act upon this suggestion, and it seemed as if he had but just rolled over on the blanket when his eyes were closed in slumber.
When the sun was an hour high Jet awakened his companion, and said, as he prepared to take his turn at sleeping:
"Be sure to call me at sunset, and keep your eyes on those fellows all the time. I don't reckon there's much chance of their being able to get free; but we mustn't run any risks."
His orders were obeyed to the letter, and the sun had but just sunk behind the trees when Jim shook him into wakefulness as he was instructed to do.
"I haven't seen so much as a boat," he said. "The men have been quiet as mice, sleeping a good deal of the time. When shall we start for the island?"
"As soon as we've had supper, and gagged the prisoners again. It won't do to let them have the chance of warning Sam."
"It ain't likely he'll get back before midnight."
"That's true; but in the meanwhile we have a good deal to do. The camp-fire must be lighted, to prevent him from being suspicious when he comes in sight of the island, and we need to look about a bit for a hiding-place."