In the new mystery in the bestselling Richard jury series, Martha grimes brings London's finest on a double-homicide case that involves Kenyan art, rare gems, astrophysics and a long-fermented Act of revenge. 'Read any one [of her novels] and you'll want to read them all.' - Chicago tribune Robbie Parsons is one of London's finest, a black cab driver who knows every street, every theatre, every landmark in the city by heart. In his backseat is a man with a gun in his hand - a man who shot robbie's previous pair of customers point-blank in front of the Artemis club, a rarefied art gallery-cum-casino, then jumped in and ordered Parsons to drive. As the killer eventually escapes to Nairobi with ten-year-old Patty Haigh - one of a crew of stray kids who serve as the cabbies' Eyes and ears at heathrow and Waterloo - in pursuit, Superintendent Richard jury comes across the double-homicide in the Saturday Paper. Two days previously, jury had met and instantly connected with one of the victims, a Professor of astrophysics at Columbia and an expert gambler. Jury considers the murder a personal affront and is soon contending with a case that takes unexpected turns into tanzanian gem mines, a closed casino in Reno, and a pub that only London's black cabbies, those who have 'the knowledge,' can find.