“Better wait till after lunch.”

About ten minutes after Mr. Mullins left the office, a man of forty—evidently a mechanic—entered.

“Is the bookkeeper in?” he asked.

“He’s gone to lunch.”

“He sent me a bill for this month’s rent, which I have already paid.”

“Please give me your name.”

“James Long.”

“And where do you live?”

The address was given—a house on East Twentieth Street.

“Haven’t you the receipt?” asked Chester.