"Yes! I am sorry to break your holiday. By the way, you have been at Brighton. Did you stop at the Metropolitan?"
"Yes. I and Uncle Caranby have been there for a few days."
"Did you see Mrs. Herne there?"
"No. Why do you ask?"
"For a reason I'll tell you later." Jennings glanced round the room and his eyes became fixed on a trophy of arms. "You are fond of these sort of things?" he demanded.
"Yes, in a way. Yonder are war-spears, revolvers, swords, and—"
"I see—I see. Here is an empty space. What was here?"
"By Jove, I never noticed that before. I forget!"
"Perhaps this will supply the gap," said Jennings, and held out the knife. "Do you recognize this?"
"Certainly. There are three notches in the handle. It is my knife. Did you take it off the wall?"