"How do you know he has not been here?"
"I know he has not been here."
"Two men were here."
"Yes, I was on their track. I know who they were."
CHAPTER XLII.
Rigby did not for a moment appear to suspect the truthfulness of the detective's story.
"Who were they?" he demanded.
"Detectives."
"And Vance was one of them?"
"No."