The Emerson brooch with its two-million-pound ruby is put on public display only once a year at the annual soir?e held by the lord and lady of a stately home on the Yorkshire Dales. The lord is killed and the brooch taken in a robbery, and the company that insured it hires private detective Harry Stark to track down the jewel and also to determine whether the robbery was real or staged. Stark finds that almost nothing he encounters in the investigation...