Impostor

Tessa is a Variant, able to absorb the DNA of anyone she touches and mimic their appearance. Shunned by her family, she's spent the last two years with the Forces with Extraordinary Abilities, a secret branch of the FBI. There she trains with other Variants, such as long-term crush Alec, who each have their own extraordinary ability.
When a serial killer rocks a small town in Oregon, Tessa is given a mission: she must impersonate Madison, a local teen, to find the killer before he strikes again. Tessa hates everything about being an impostor - the stress, the danger, the deceit - but loves playing the role of a normal girl. As Madison, she finds friends, romance, and the kind of loving family she'd do anything to keep.
Amid action, suspense, and a ticking clock, this super-human comes to a very human conclusion: even a girl who can look like anyone struggles the most with being herself.

'Fun and suspenseful.' Marissa Meyer, New York Times bestselling author of CINDER

'An unpredictable page-turner ... reminiscent of a Stephen King novel.' VOYA