In a global cataclysm, "The Sudden Departure," 140 million people disappeared without a trace. Three years later, residents of Mapleton, N.Y., try to maintain equilibrium when the notion of "normal" no longer applies. Intense grief has divided families and turned faith to cynicism, paranoia and madness, leading some of the traumatized to join the Guilty Remnant, a cultlike group. Kevin Garvey, a b
