Title: Under Their Skin
Description: Twelve-year-old twins Nick and Eryn investigate why their mother and new stepfather are keeping secrets, why they are forbidden to meet their stepsiblings, and, most important, why their lives are in danger.
Subjects: Science Fiction, Fiction, Brothers and sisters, Secrets, Juvenile fiction, Robots, Science fiction, Extinction (Biology), Twins, Human beings, Children's fiction, Robots, fiction, Twins, fiction, Brothers and sisters, fiction, Siblings, fiction