"Okay, I will. Was there the word 'scorpion' connected with that bank job at all? In any way at all."
Stevenson looked at the reporter and smiled. He said, "As a matter of fact, Mr. Roberts, there was."
Roberts blinked. "There was?"
"Yes, indeedy. There certainly was." And Stevenson told him the full story of the bank job.
"I see," said Roberts dazedly when Stevenson was finished. "I see. Or, I don't see. I don't see it at all."
"Your turn," Stevenson told him. "Now you tell me what made you ask that."
"This," said Roberts. He reached into the inside pocket of his sport jacket and withdrew a business-size envelope, which he handed over to Stevenson.
It was another crank letter, in the same newspaper clipping form as the first two. It read:
Dear Mr. Editor,
The bad boys were captured. They could not escape the Scorpion. I left the mark of the Scorpion on their jackets. Criminals fear the mark of the Scorpion. They cannot escape. This is my third letter to you. You should warn all criminals to leave the city. They cannot escape the Scorpion. WARN YOUR READERS.