Summary
A generation before Tris', three Dauntless rose to the top: Tobias Eaton, Lauren Ashden, and Eric Coulter. This is the story of their initiation, including how Lauren, who has only ever been Dauntless, suddenly finds herself unable to ignore the mysterious past of "Four" or the cruel, yet intoxicating nature of "the Snake." The attack against Divergents is also secretly starting.