The next morning John Barclay gave Robert Hendricks the keys to the bank.

Barclay watched the town until nine o'clock and satisfied himself that there would be no run on the bank, for during the early part of the morning young Hendricks was holding a reception in his office; then Barclay saddled a horse and started for the wheat fields.
After the first hours of the morning had passed, and the townspeople had gone from the bank, Robert Hendricks began to burrow into the books.

He felt instinctively that he would find there the solution of the puzzle that perplexed him.

For he was sure Molly Culpepper had not jilted him wantonly.

He worked all the long spring afternoon and into the night, and when he could not sleep he went back to the bank at midnight, following some clew that rose out of his under-consciousness and beckoned him to an answer to his question.
The next morning found him at his counter, still worrying his books as a ferret worries a rat.