"The service is simple, so that you will probably be qualified to do what I require."

"I've read lots of detective stories," said Stephen, eagerly. "It's just the work I should like."

"Humph! I don't think much is to be learned from detective stories. You will understand, of course, that you are not to let anyone know you are acting for me."

"Certainly. You will find that I can keep a secret."

"I leave Chicago to-morrow morning, and will give you directions before I go. Where can we have a private conference?"

"Here is an oyster house. We shall be quiet here."

"Very well! We will go in."

They entered a small room, with a sanded floor, provided with a few unpainted tables.

Stephen and his uncle went to the back of the room, and seated themselves at the rear table.

"We must order something," suggested Stephen.