When Samantha Ruiz turns invisible in front of team mates on a rafting trip, she knows something’s wrong with her. According to her knowledgeable friend Will, she’s got a rare genetic disorder. Fearing a lifetime sentence as a lab-rat, Sam wants to keep her ability secret. But she also wants to know if there’s a connection between dark Nazi experiments on others like her and her own mother’s death eight years earlier.

At the same time that Sam is sleuthing, she’s falling hard for Will. And soon, she’ll have to choose between keeping her secrets hidden and keeping Will safe.