The Orange-Yellow Diamond

The story opens with the death of a pawnbroker in a shabby London district and the discovery of puzzling possessions—a Spanish manuscript, rings, and a rare orange-yellow diamond—that pull a circle of lodgers, pawnbrokers, detectives, and an MP into competing enquiries. Through inquests, private searches, clandestine laboratories, and shifting alibis, relationships and secret motives emerge while theories are tested and rival investigators clash. Uncovering hidden ownership and a chain of betrayals leads to the recovery of the jewel and an explanation of the circumstances surrounding the death, exposing greed, deception, and the social contrasts behind a seemingly ordinary murder.