Mercè Diago Book order (chronological)

A duo of private investigators are after a flamboyantly enigmatic copycat killer in this thriller by bestselling author David Baldacci. Ex-Secret Service agents turned private investigators, Sean King and Michelle Maxwell have been hired to find evidence exonerating a handyman accused of burglarizing the local bluebloods.

Prudence Barrymore, a talented nurse who had worked with Florence Nightingale in the Crimea, is found strangled to death in a London hospital. Private inquiry agent William Monk is engaged to investigate this horrific crime. Gradually, Monk assembles the portrait of a remarkable woman. Yet he also discerns the shadow of a tragic evil and a frightening glimmer of his own eclipsed past . . .