In a book that invites readers to start at either end or alternate between perspectives, Lyra and Gemma get the chance to escape from the protective environments in which they were raised while uncovering secrets about the bioresearch facility that connects them.

Seventeen-year-olds Lizzie, Ella, and Betsy Best are clones, raised as identical triplets by their surrogate mother but living as her one daughter, Elizabeth, until their separate abilities and a romantic relationship force a change.

Two girls, two stories, one epic novel. Lyra's and Gemma's stories can be read separately--with either story first--or in alternating chapters, but no matter which way you turn the book, the two distinct stories combine into one breathtaking experience for both heroines and readers alike.-- Jacket flap.