* Thriller/Suspense: This is a likely genre if the book focuses on the suspense and fear surrounding the kidnapping, the protagonist's attempts to escape, and the pursuit of the kidnapper.
* Mystery/Crime: If the book focuses on solving the mystery of who kidnapped the victim, the investigation, and the detective work involved, it could fall into this genre.
* Horror: If the kidnapping is part of a larger horror story, with elements of supernatural or psychological terror, it could be categorized as horror.
* Action/Adventure: The book could also be an action-packed adventure, where the kidnapped person fights for their freedom, maybe with the help of allies.
* Coming-of-Age/Young Adult: The book could be about a young person who is kidnapped and how this experience changes them.
To determine the exact genre, you'd need more information about the story's plot, characters, and themes.