“No,” replied the captain. “I fear Van Ryk and Bostock have too much weight with them. Besides, sailors on these occasions are apt to stick together. If we don’t get an answer within the hour, we must look for broken heads.”

The hour passed, and then another hour or two. The after noon slipped away, and there was no return of the deputies. The men kept quite out of sight. But the sound of hammering and sawing and the buzz of voices were plainly audible.

“They are up to something, sir,” said Rolfe; “making a raft, most likely, by which they hope to reach the shore. They’ve plenty of materials, and some smart hands among them. Don’t you think that is likely, sir?”

“I think it very likely,” answered the skipper; “only I am afraid they are more likely to use it to make an attack on us than to reach the shore—or rather, they will attempt the latter, but only when they have carried out the former. They won’t go without the money if they can help it. But the first thing for us will be to ascertain what they are really about, and we can do that, though not without some risk. The boat is still lying off at the place where we moored her when we came across for the last time. If we got aboard her we might row out to the other side of the reef, keeping at a safe distance, and then we should find out what they are doing.”

“No doubt, sir,” rejoined Rolfe; “but would they let us do it? I am pretty sure there are one or two fellows lying under the bulwarks, watching us from the deck. They could pick off any one who tried that.”

“I am afraid that is only too likely,” said Captain Ranken; “but it is so important to us to know what they are up to, that I think we must attempt it. Who will volunteer for the service?”

He was answered by half a dozen eager voices, declaring each man’s readiness to make the adventure.

“Very good, gentlemen; I thank you heartily,” said the skipper. “The men I want must be good divers, if possible, but certainly good swimmers. They must also, of course, understand the management of a boat.”

“I can’t swim, I am sorry to say,” cried Walters.

“I can swim, but I am no diver,” said Rolfe.