In this breathtaking second book of The Scion Chronicles, 17-year-old Jacey vows to protect everyone at the Scion School from being overwritten—having their minds wiped and replaced by wealthy and secretive "Progenitors." But when a VIP progenitor arrives to overwrite a 15 year old, Jacey faces a heartbreaking choice: risk everything to save one girl or sacrifice that girl for the greater good. Seizing on Jacey's distraction, Belle makes a desperate move to secure her own safety and to claim the love of her lifelong obsession: Vaughan. But the journey to freedome leads Belle to the precipice of evil, forcing her to make an impossible decision... Who will she save? Who will she sacrifice?