“Here’s hoping you have a good voyage, friend!” said Frank.

“Yes,” added Jimmie, “we’ll see you a little later!”

“That reminds me,” put in Ned, “we might as well get back to the ‘U-13’ and begin work. There’s no use delaying the game!”

“That’s right,” agreed Harry. “These fellows are probably in a hurry for that submarine. We might as well be decent.”

“Wait a minute,” suggested Jimmie. “You’ve given me an idea! Your mention of the name of a certain undersea craft started a train of thought in my alleged brain. Take it easy for a moment!”

“Yes,” cried Jack, in mock sympathy, “stand back! Give him air! If Jimmie is really going to think, let’s give him lots of room!”

“Aw, you go on!” scorned Jimmie. “I’ve got a right to think if I want to, haven’t I? I guess that’s my privilege!”

“Not unless you have a union card!” protested Jack, laughing.

“That’s all right,” retorted Jimmie with a grin as he wrinkled a freckled nose at the other. “I was going to think about a scab, anyhow, so I don’t need a card. Besides, this is on overtime!”

“All right, you win!” declared Jack, submissively. “Go ahead!”