Every piece of baggage had been examined and every inch of the car
inspected. All passengers, even the maid, porter, and brakeman, had been
searched. The knife was still in the car.
Remember?—there was nothing said about the conductor being searched. The
knife was found in his pocket.
He was in logic a great crytic,
Profoundly skilled in analytic;
He could distinguish and divide
A hair twixt south and south-west side.
Butler.