"You mind the office—I'll see what is up," went on Nat, and followed down the stairs.
"He is gone, Parsons," said one of the men.
"You are sure it was our man?"
"Yes, confound the luck. He got away like a slippery eel."
"Did Mr. Dart run away from you?" asked Nat.
"That's what he did, young man."
"What did he run for?"
"Perhaps you know as well as I do."
"No, I don't."
"How long have you worked for that man?"