"If I—I have the letter, I took it by mistake," went on Andy Cross. "Sometimes I have violent headaches, and during those periods I do the most extraordinary things."

"Indeed!" sneered Charles Shotmore. "Never mind the headaches, just you hand over the money order."

As he spoke he slipped his hand into Cross' breast pocket and drew forth the letter.

"Mine, sure enough!" he ejaculated.

"Is the money order in it?" questioned Robert.

"Yes. My boy, you have done me a valuable service."

"I am glad of it."

"I really believe I ought to have this rascal arrested."

"I think you are justified, Mr. Shotmore. It's bad policy to have such dishonest persons running around loose."