In a minute more the six cadets were hunting in as many different directions for those they were after. Larry, Songbird and Fred took to the lake shore, while the three Rover boys went up and down the roadway and into the woods beyond.
Nearly half an hour was spent in the search when the other lads heard a whistle from the lake shore. The signal came from Larry, and was repeated several times.
"He wants us in a hurry," said Sam to Dick, when they met, and started on a run. They met Larry coming towards them, beckoning wildly.
"Hurry up!" he called.
"What's up?" asked Dick.
"They just went past in a sailboat and they are bound across the lake."
"The two men?" asked Sam.
"Yes, and Tad Sobber, too."
"Tad!"
"Yes. Their boat couldn't have been very far from mine. I saw the two men get on board and then Tad came from a cabin, and all three hoisted the sails as quickly as they could and stood over in the direction of the point with the three rocks—you remember the spot?"
"I do—the place we once went nutting," said Dick.
By this time the other cadets were coming up,
