The thrilling #1 New York Times and USA Today bestseller (Karin Slaughter): when three bodies are found in a Chicago bedroom, a black book goes missing . . . and the city has never been more dangerous. Billy Harney was born to be a cop. As the son of Chicago´s chief of detectives with a twin sister on the force, Billy plays it by the book. Teaming up with his adrenaline-junkie partner, Detective Kate Fenton, there´s nothing he wouldn´t sacrifice for his job. Enter Amy Lentini, a hard-charging assistant attorney hell-bent on making a name for herself who suspects Billy isn´t the cop he claims to be. They´re about to be linked by more than their careers. A horrifying murder leads investigators to an unexpected address-an exclusive brothel that caters to Chicago´s most powerful citizens. There´s plenty of incriminating evidence on the scene, but what matters most is what´s missing: the madam´s black book. Now with shock waves rippling through the city´s elite, everyone´s desperate to find it. As Chicago´s elite scramble to get their hands on the elusive black book, no one´s motives can be trusted. An ingenious, inventive thriller about power, corruption, and the secrets that can destroy a city, The Black Book is James Patterson at his page-turning best.