“This one,” says Catty, and he picked the tin cylinder off the floor and showed it to Mr. Browning.

I thought Mr. Browning would jump through the ceiling.

“Where’d you get this?” he says.

“Oh, we were poking around the hole where they’d been digging for the treasure, and we found it. I kind of wanted it for a souvenir, so we took it away and hid it. That was a day or so ago. We buried it in the sand near a fish shanty. Then, last night, we hid from the mutineers in the same shanty, and we went out and dug it up. Pretended it was full of sacred jewels.”

“You got this where they were digging for treasure?”

“Yes.”

“Um....” He started to take the cap off the cylinder and then he pulled a thick roll of paper out of it. “Doesn’t look like charts, does it? So House saw this and chased you?” He started to laugh. “If this don’t beat the Dutch. Right under their noses....”

“What is it?” says Catty.

“Look and see,” says Mr. Browning.

We did, and it was just sheets of paper covered all over with figures and funny marks that didn’t mean a thing.