Without softening very much the basilisk nature of his stare, he said impassively: "We are coming to that part of my investigation, sir." "That's right.

Well, what have you brought away from it ?" The Chief Inspector, who had made up his mind to jump off the rope, came to the ground with gloomy frankness.
"I've brought away an address," he said, pulling out of his pocket without haste a singed rag of dark blue cloth.

"This belongs to the overcoat the fellow who got himself blown to pieces was wearing.

Of course, the overcoat may not have been his, and may even have been stolen.

But that's not at all probable if you look at this." The Chief Inspector, stepping up to the table, smoothed out carefully the rag of blue cloth.