Regan

Former Title: The Grimly Queen. From the author of the astonishing young adult novel Home comes a haunting tale of identities taken, lost and found, and an obsessive friendship between two young women who have everything to gain from one another and nothing to lose but themselves. When a shy university sophomore begins to feel that her life is disintegrating around her, she's more than willing to accept glamorous Regan Lathie's offer of an escape - a room in her apartment, away from the campus.
But only once she moves in does she understand the true height of Regan's status. As their friendship deepens and she is sucked further and further into Regan's world, she begins to see that being Regan Lathie, the girl everyone desires, isn't all it's cracked up to be, and coming back to herself might be the only way she can escape The Grimly Queen.