Malla Nunn's fourth Detective Sergeant Emmanuel Cooper novel, Present Darkness, is our June Whodunit Top Pick! Set in 1953 Johannesburg during the early years of Apartheid, DS Cooper is grappling with the secret of his mixed race identity while aiding in a highly publicized murder investigation. But when one of the suspects turns out to be the son of Cooper's friend, Zulu DS Samuel Shabalala, Cooper can't shake the feeling that police corruption is playing a part. Our columnist, Bruce Tierney, can't get enough of Nunn's "fast-paced, intricate storylines . . . deeply flawed hero and Oscar-worthy cast of supporting characters."