True to the Major’s promise, powerful lights and capable-looking guns were trained on the sub when, with a rush, she broke surface. But there was no need for that. The members of the youthful crew were too glad to escape death on the bottom of the sea, to offer any resistance to capture.

The first person to appear above the sub’s deck was Mildred. Awaiting her in the Tub was Johnny, and how he greeted her was a sight to behold. Some time later they sat on the porch of the Kennedy home—Dave, Doris, Johnny and Mildred.

“Well, Johnny,” said Dave, “our work beneath the very deep sea is done. We’ll collect a few specimens—turtles, crawfish, and bright, tropical fish close to the surface—then hoist anchor for New York!”

“New York? Where is that?” Johnny asked dreamily.

“It’s an ancient Dutch colony,” Dave chuckled.

“Oh, yes! I remember!” said Johnny. “I think I’ll not go there, if you folks don’t mind.” He hesitated.

“Mildred tells me she located their motorboat while she was in the submarine. Major Braden thinks we’ve done a brave deed or two and put him in a good way to clear up this spy business—so he’s going to repay us by helping bring the schooner to the surface. But of course,” he drawled, “there will be a lot of work to be done after that.”

“And you’d like to stay and help” said Dave. “I don’t blame you. I’d like to stay myself. Well, old son, all I can say is—go ahead and God bless you!”

“I’ll be back in the States in two or three months, I guess,” said Johnny. “I—I’m sort of thinking of going to college. College is wonderful for just anybody!

“I hope you come back to these waters with the steel ball,” observed Johnny, after a time. “I’d like to have one good, long, look for old Samatan’s treasure chest.”