How much of our identity is based on our name? Twin girls—Helen is smart and popular, Ellie is awkward and slow—decide to play a game and switch identities to see if they can trick people, but at the end of the day—Ellie refuses to switch back. This creepy tale of stolen identity will keep readers engaged as alternating chapters depict the sisters' youthful experiences to adulthood. One twin has a wonderful life of fame while the other battles mental illness. Helen's struggles as she tries to make people realize her true identity are heartbreaking, and her family's dysfunctional history is the shadowy underlying theme that permeates the novel. VERDICT Blogger Morgan (The World Between Two Covers) has written a solid psychological debut thriller that fans of S.J. Watson and Gillian Flynn will want to add to their to-read lists. [See Prepub Alert, 7/27/15.]—Marianne Fitzgerald, Severna Park H.S., MD