“I know a couple of ways,” said Jack, and they tried his method, but they only got a lot of meaningless words and figures, though they sat up until nearly midnight.

“It’s no good!” exclaimed Tom regretfully. “Let’s go to bed, and have another try to-morrow. I’m dead tired.”

They all were. So they turned in, after making a campfire blaze that they hoped would at least glow until dawn. Nothing disturbed their slumbers, and in the morning, after breakfast, they again began studying the map.

They were forced to give it up, however, and Tom in desperation exclaimed:

“We’ll just put this away for a few days, until we get another chance to visit the mill. Then we’ll take it with us, and when we’re right on the spot some idea may come to us that will put us on the right track.”

The others agreed that this was a good plan, and as a sort of recreation they went for a ride in the motorboat. They fished, having fair luck, and, having reached a large cove, not before visited, they went ashore and cooked the dinner they had brought with them, broiling their fish over the live coals of a campfire.

“Say, this is something like living!” exclaimed Bert, as he stretched out on some moss, and picked his teeth.

“I should say so,” agreed Dick. “I’m glad you fellows let me come along.”

“We’re glad to have you,” declared Tom. “Supposing we take our guns and go off in the woods? Maybe we can have a shot at the critter who took our bacon.”

“Sure! Come on!” exclaimed Bert.