Genre: YA thriller
Sixteen-year-old foster-care veteran Kae Ringer is already having a bad week, when she looks in a Philadelphia newspaper and sees her face under a murder headline. The victim’s name and hair are different, but the face is hers. Within a day, she goes for a run and returns to find her latest family brutally murdered. Kidnapped and taken to Switzerland, she learns her secret twin was a student-employee of a special school. Liberta is a residence and training ground for operatives known as Technical Assistance Guides; her sister Charlotte was known as TAG-19.
The Headmaster covers up Charlotte’s death from the rival agency that ordered the murders, and wants to train Kae to take over TAG-19’s duties. In mourning and danger, Kae cooperates. With a newfound sense of identity and purpose, Kae begins to investigate clues about her birth and plan revenge on the killers. Small problem—with Kae walking around, the spy who killed her twin thinks he missed his target. Now he’s waiting for the right moment to finish the job.