Mabel Hartley A Sapphire Moon

The first book in the series takes 14-year-old Mabel to an English boarding school, complete with bullies, best friends, big time crushes and secret diaries kept in locked cases.

After going through her father's police files, Mabel finds out there's a secret part of her school that may hold the key to discovering what happened to an heiress and some paintings she stole from a very famous artist.

Does Mabel have what it takes to convince her new best friends to help her find the paintings even if it means breaking every rule ever invented?

Along the way, Mabel will find out what true friendship is all about and whether she can outwit even those with the cruelest intentions. And why have her parents never divulged even a hint about the woman she was named for. Who was the first Mabel and why was she so important?