"What was he doing at Deswarth?"
"I do not know, sir."
"Humph! Well, say nothing about this to any one, Mrs. Belk. I will see you again when I come down to Deswarth."
"You are coming down to Deswarth, sir?"
"Yes, to find out who killed Sir Rupert."
"I think you'll find him in London, sir," said the woman, with a grim smile, as she stood with her hand on the door. "Good-morning, sir."
"Good-morning."
Maxwell stood a long time looking at the pin.
"Yes," he said aloud, "it certainly belongs to that man."
He had seen it in the scarf of Ferrari in the morning he met Mrs. Belswin at the Deswarth station.