“We were looking at it to-night,” he explained, “trying again to figure out its secret. Dropping it by accident, Mrs. O’Mally rocked on it. We found out then that it had been made in halves and put together with gold rivets.”

“Did anything come out of it?” cried Poppy excitedly.

“No. But if you’ll take this piece closer to the light you’ll find it’s got a lot of queer marks on it.”

Later I made a drawing of the marks. Here it is:

Poppy studied the pictures, realizing, of course, that they composed the “key” to the treasure’s hiding place.

“The first picture,” says he, “is the sun.”

“Either that,” say I, putting my own beezer to work, “or a full moon.”

“A full moon! That’s it! For pirates always hid their stuff by moonlight. A gold cucumber first. Then a full moon. That must mean a full moon in cucumber time.”

“Lay to it, old Sherlock,” I patted the brainy one on the back. “You’re getting warmer every minute.”