"Hurrah!" cried the lad, taking the paper from Mr. Sharp and waving it in the air. "That's the stuff! Now for a search for the submarine treasure!"

Chapter Two

Finishing the Submarine

"What's the matter?" cried Mrs. Baggert, the housekeeper, hurrying in from the kitchen, where she was washing the dishes. "Have you seen some of those scoundrels who robbed you, Mr. Swift? If you have, the police down here ought to—"

"No, it's nothing like that," explained Mr. Swift. "Tom has merely discovered in the paper an account of a sunken treasure ship, and he wants us to go after it, down under the ocean."

"Oh, dear! Some more of Captain Kidd's hidden hoard, I suppose?" ventured the housekeeper. "Don't you bother with it, Mr. Swift. I had a cousin once, and he got set in the notion that he knew where that pirate's treasure was. He spent all the money he had and all he could borrow digging for it, and he never found a penny. Don't waste your time on such foolishness. It's bad enough to be building airships and submarines without going after treasure." Mrs. Baggert spoke with the freedom of an old friend rather than a hired housekeeper, but she had been in the family ever since Tom's mother died, when he was a baby, and she had many privileges.

"Oh, this isn't any of Kidd's treasure," Tom assured her. "If we get it, Mrs. Baggert, I'll buy you a diamond ring."

"Humph!" she exclaimed, as Tom began to hug her in boyish fashion. "I guess I'll have to buy all the diamond rings I want, if I have to depend on your treasure for them," and she went back to the kitchen.

"Well," went on Mr. Swift after a pause, "if we are going into the treasure-hunting business, Tom, we'll have to get right to work. In the first place, we must find out more about this ship, and just where it was sunk."