“Treasure,” says he.

“What kind of treasure?”

“Oh, gold and precious stones, and rings and jewelry and all the things old Captain Kidd and those other pirates used to hide in chests.”

“Think he’s got a map?”

“Yes,” says Catty.

“Um ...” says I.

“Say,” Catty says, and he lifted his head out of water, “wouldn’t it be a joke if we could send them off on a wild-goose chase?”

“How?”

“By letting them get hold of the wrong map,” says he. “We could fix up a map, and let it fall into their hands—and make them think they’d got hold of the right one. Then they’d leave us alone and go hiking off as fast as they could to get the treasure before we could.”

“Good idea,” says I, “but how could we fix it so’s they’d get the map?”