“Nothing easier. See here, I will place the number back into the envelope and put the envelope back into the box. There it goes. Now remember, you know as well as I it has got the number entitling you to the fifty-dollar watch. You most likely know just where it is. Try it for fun.”

Carrow did so. Sure enough, his sharp eyes had followed the right envelope and the number was within it.

“Now I’ll try it again. There it goes, just as before. If you want to win, I’ll give you the chance. For ten dollars you may draw three envelopes. You are bound to strike the right one in one out of three.”

Carrow’s eyes sparkled. He was sure he had his eye on the right envelope.

He drew out his pocket-book to get out his ten dollars.

At this instant Bob brushed up to him. The young photographer had watched proceedings closely, and he knew exactly what had occurred.

“Don’t try it, or you will lose,” he whispered.

Carrow started back as if shot.

“What, Bob Alden!” he cried.

“Yes, Carrow. Did you hear me?”