"There's a boy I know out on the street," suggested Mark. "He would be glad to go."

"Who is it?"

"Tom Trotter, a friend of mine. He's a good boy, though he's only a bootblack."

"Is he reliable?"

"Yes, sir; I will answer for him."

"Very well. Call him in."

Mark went to the door and called "Tom! Tom Trotter!"

Tom looked around and recognized Mark.

"You ain't left de telegraph, have you, Mark?" he said.

"No, but I'm working here for a day or two. Would you like to go up town on an errand?"