"Because of that secret compartment," suggested Amy. "Wasn't it just wonderful?"
That same false bottom of the tin box was interesting the boys more, just then, than were the diamonds themselves. Will, Allen, Roy and Henry gathered around the queer jewel casket.
"There, it's shut!" exclaimed Will, as a click proclaimed that he had pushed the two folding leaves of sheet iron back into place.
"You'd never know but that that was the real bottom," said Roy.
"Let's see if we can open it again," proposed Allen.
The boys tried, pushing here and there. But the bottom did not fly up as it had done for Betty.
"Say, what magical charm, or 'Open Sesame,' did you use on this?" asked Allen, after vainly trying. "We can't make it work, Bet."
"I don't know," she answered. "I just simply jabbed it with the ruler, that's all."
"Well, then, please 'jab' again," pleaded Will.
Obligingly Betty took the piece of wood, and began poking about in the bottom of the tin box. For some time she was as unsuccessful as the boys had been.