Fortune Liquors is a small shop in a tough South L.A. neighborhood, a store Detective Harry Bosch has known for years. Bosch still carries in his pocket a matchbook he picked up there on a case years ago. Its motto -- "Happy is the man who finds refuge in himself" -- has been a guiding light through some of his darkest days. The murder of John Li, the store's owner, hits Harry hard, and he promises Li's family that he'll find the killer. The world Bosch steps into next is unknown territory. He brings in a detective from the Asian Gang Unit for help with translation -- not just of languages but also of the cultural norms and expectations that guided Mr. Li's life. He uncovers a link to a Hong Kong triad, a lethal and far-reaching crime ring that follows many immigrants to their new lives in the United States. And instantly his world explodes. The one good thing in Bosch's life, the person he holds most dear, is taken from him, and Harry travels to Hong Kong in an all-or-nothing bid to regain what he's lost. In a place known as Nine Dragons, as the city's Hungry Ghost festival burns around him, Bosch puts aside everything he knows and risks everything he has in a desperate attempt to outmatch the triad's ferocity.