“The house is worth more than the treasure,” said Tom.

“That’s so,” Tuckerman agreed. He frowned and bit his lip. “I don’t like to be stumped, that’s the long and short of it. I don’t like to admit that I can’t work out the puzzle.”

“Puzzles never bother me,” said David. “I think they’re stupid things. I never want to know the answer to any of the problems in the algebra books. What good does it do you to know them? Of course some people get so hipped over knowing the answers they can’t eat till they find them out—whether a dog or a rabbit will reach a given point first, things like that, or about men rowing a boat against the tide; but they don’t get me the least little bit excited. Leave them to Benjie, I say.”

And that was what they did. They left Ben up in the attic, the last room they had searched. Attics fascinated Ben. In a way they were like puzzles; there were so many odds and ends that needed putting together. He walked idly about, looking at chairs and tables that had lost some of their legs, at statuettes that were broken and disfigured, until he came to the window that opened to the east. There he stopped in a brown study.

A distant sail caught his eye. It reminded him of something. Oh, yes, from the window he could see the line of the little island where they had found the fishing-smack at anchor the night before. He couldn’t tell if this sail belonged to the smack; it was too far away; but the sight of it started a train of thought he had been working over that morning.

He went downstairs and was glad to find that the others had left the house. In the living-room he took the two pieces of parchment from the drawer of the secretary and carefully copied the writing on them on a large sheet of paper. This he laid on the lid of the desk and put an inkstand on the paper. Then he returned the pieces of parchment to the drawer.

Satisfied with this, he went outdoors and crossed the island to the beach where he had found the chest. He sat on a log, and waited patiently. Presently he saw a sail, to the east; and this time he felt fairly sure that it was the same fishing-smack that they had chased the previous night.

He jumped up and began to burrow in the crevice between the rocks. He did not attempt to pull the chest out; it was too heavy for him to do that unaided; but he kicked his heels and pushed himself in. And after a while he pushed himself out again and stood up. Looking at the smack, he decided that she was near enough for anyone on her deck to have witnessed his strange performance.

The next step in his plan came when the dishes had been washed after dinner. He proposed that they should sail over to the little island and see if the smack was still in the neighborhood.

“After the thieves, are you?” asked David. “Now see here, my lad, if we should find them, what then? Are you going to step aboard and tell them they’re arrested?”