"Under terms of our wager, I must not reveal his name and he must not reveal mine."
"Whew!" exclaimed Cub, addressing his two friends, who removed the phones from their ears, the better to hear him. "Can you beat that?"
"We sure have hit a sensation of some sort," Hal declared.
"What'll we do?"
"I don't know what under the sun to do," Cub replied. "I don't like to pass him up, for fear he may be telling the truth; and yet, I don't like to be the victim of a joke."
"I tell you what to do," Bud suggested, without any seriousness of intent, however. "Make a dash over the lake in your father's motor boat and rescue this Robinson Crusoe."
"By Jiminie, Bud!" exclaimed Cub enthusiastically! "You've hit the nail on the head. Our vacation problem is solved. That's what we'll do, all of us. I don't care whether it's a joke or a tragedy; we'll make a voyage of discovery over that way and see if we can't find Crusoe's island. What say you, fellows?"
CHAPTER III
Talking It Over
What could the fellows say?
They couldn't say anything at first, so astonished were they at the announcement from Cub. Then so great was their eagerness, following the recovery from their astonishment that about all they could do was to "fall over each other" in their efforts to express their approval.