“We’ll do the rest of the well-digging in the cool of the late afternoon,” he said between a succession of yawns.

“Let’s hope,” said Tom, “that Mr. Dunbar won’t get here and wake us up before we’re ready.”

“There’s not much danger of that,” answered Cal.

“Why not, Cal?”

“You’d know without asking if you were as observant to-day as you usually are. I suppose you didn’t notice that the wind died out before noon, and there hasn’t been a sailing breath since.”

“That’s so,” said Tom, “and he’ll have to row the whole way. I ought to have thought of that.”

“Well, please don’t apologize now. It would only keep us awake when every moment is precious for slumber. I give notice now that I’m asleep and you can’t pull another word out of me with a corkscrew.”

When the weary fellows waked the afternoon was nearly gone, but before resuming their work, and by way of refreshing themselves for it, they went down to the beach and took a plunge into the sea.

“No sign of Mr. Dunbar yet,” said Tom, who was beginning to be uneasy.

“No,” answered Larry, “but we needn’t bother about him. He’ll turn up quite unexpectedly when he gets ready. He always does that you know. What we’ve got to do is to finish our well in the shortest possible time. So, on with your duds, and let’s get to work.”