Neil Burger

Helena, a woman living a seemingly ordinary life, hides a dark secret—her father is the infamous 'Marsh King', the man who kept her and her mother captive in the wilderness for years. After a lifetime of trying to escape her past, Helena is forced to face her demons when her father unexpectedly escapes from prison.

In a world divided into factions based on personality types, Tris learns that she's been classified as Divergent and won't fit in. When she discovers a plot to destroy Divergents, Tris and the mysterious Four must find out what makes Divergents dangerous before it's too late.