"Can you open it?
I claim a third share of the diamonds!" "Give me the box," said Dick, also a bit excited.

When he got it in his hands he, too, ran his finger nail over the engraved brass.

Several tiny clicks followed.
"There must be some opening beneath the brass lining," he said.
"Take it to the window, and perhaps you'll be able to see something more," suggested Sam.
Dick did as advised, and, with his brothers gathered close beside him, worked over the money casket for fully quarter of an hour.
"It seems to click, and that's all," he said disappointedly.

"If I could only----Oh!" Dick stopped short.

His finger had run across the lining in a certain way.