Falls the Shadow by Stefanie Gaither

Cate’s sister may be a clone, but that doesn’t make her a killer. Does it? Murder, morality, and a slow-burning romance fill the pages of this futuristic thriller.

When Cate Benson was a kid, her sister, Violet, died. Two hours after the funeral, Cate’s family picked up Violet’s replacement like nothing had happened. Because Cate’s parents are among those who decided to give their children a sort of immortality by cloning them at birth—which means this new Violet has the same face. The same perfect smile. She even has all of the same memories as the girl she replaced.

She also might have murdered the most popular girl in school.

At least, that’s what the paparazzi and the anti-cloning protestors want everyone to think: that clones are violent, unpredictable monsters. Cate is used to hearing all that. She’s used to defending her sister, too. But Violet has vanished, and when Cate sets out to find her, she ends up in the line of fire instead. Because Cate is getting dangerously close to secrets that will rock the foundation of everything she thought was true.