On the morning of 12 March 1932, the 9:14 express from Paddington pulls into Bristol Temple Meads carrying the body of Sir Oswald Greaves — chairman of the collapsed Albion Investment Trust — strangled in his locked first-class compartment. The door was bolted from the inside; the corridor key never left the conductor's pocket. Everyone assumes it happened in the dark of Box Tunnel. The watch on the floor says otherwise. The evidence is on the table. The solution is sealed. Can you name the killer — and explain how he got in — before you break the seal?
33 pages of original evidence — printed, aged, and ready to investigate.
