"Yes, sir; but everything was safe and sound when I left. I tried the vault door after putting on my hat and coat, and I am positive it was securely locked."
"Are you equally positive in regard to the front door after you had passed out?"
"Yes, sir; I turned the knob repeatedly; the door was closed and locked."
"You have no theory to offer as to how the robbery was accomplished?"
"Why, Mr. Vaughan! how should I know anything more about it than yourself? Was the vault door open?"
Without replying, the president said, "Step to the door and call Mr. Hendrix and Mr. Salters."
Frank did as he was bidden.
"Each of you has a private drawer in your desk of which you retain the key. The bank has lost a large sum of money, and we must be willing to clear ourselves of the suspicion which might attach, in view of the fact that the vault combination is unknown to any person outside this room. You will hand me your keys, and come with me to the outer office while I perform a most unpleasant duty."
Hendrix's desk was first inspected; then Salters's; but nothing found to implicate them.