What is the theme in Still Missing by Chevy Stevens?

Control is another theme in the book. During the year in which Annie is held captive by the Freak, the one thing she loses most is control. Annie can no longer decide when she leaves the house, when she will take a bath, when she will eat a meal, when she will use the restroom. Every aspect of Annie's life, down to the type of underwear she will put on that day, is chosen by the Freak.