Private School Prisoner was a big hit for me. That's actually putting it rather mildly. It has sold more than any individual (non-collection) book has for me since October of 2015 when Sam's Halloween came out. The difference is that Private School Prisoner took until February of 2016 to do what PSP did in it's first month.
Private School Prisoner focused on how Chase became prisoner of the school girls and forced to take Haley's place as a private school girl at prestigious Whitcomb School. This book is literally about punishment and the girls who administer them.
For lack of a better term, Chase has become the prisoner of a half dozen girls at the school. Their plan was to give Hayley a way to go off with her boyfriend, but also to give these boy crazy girls an actual male to play with. I'm sure a lot of my readers would love to be in Chase's spot and that's just what the girls are trying to convince him of. However, Chase is stubborn and the girls are left the task of breaking him.
The story focuses mainly on three girls--Paige (His Roommate), Kelsey (The drama nerd), and Chelsea (The tough girl/ jock). They each want something different from Chase and they use and punish him in different ways.
Here's an excerpt: