“That's what we want to know,” said Starr. “What did happen? Who got afoul of you?”

“I don't know. Who brought me in here?”

“We got you out of the bank vault and brought you here by the way of Britt's private passage.”

Vaniman seemed to find that statement unconvincing.

“He didn't know about that passage,” stammered the president. “I—I never bothered to speak about it. I suppose I ought to have told you, Frank. That cement panel is a door—with the handle on this side.”

The cashier shook his head slowly, as if giving up the attempt to understand.

“I guess the panel fits so closely that you never noticed it was a door,” Britt went on, with the manner of one trying to set himself right. “I meant to tell you about it.”

“But what happened?” the examiner insisted.

“I don't know, sir.”

“Look here! You must know something!”