"Two boys putting off in a rowboat," announced Captain Langless.
"They are Tom and Sam Rover," answered Arnold Baxter, after a brief survey through a marine glass.
"How did they get to know enough to follow this craft?"
"I'm sure I don't know. But those Rover boys are slick, and always were."
"What will you do when they come up?"
"Warn them off."
"I've got an idea, dad," came from Dan.
"Well?"
"Why not get out of sight and let Captain Langless invite them on board, to look for Dick. Then we can bag them and put them with Dick."
"By Jove, that is a scheme!" exclaimed the rascally parent. "Langless, will you do it? Of course, we'll have to get out of sight until the proper moment arrives."