There are 9 books and every 3 books got a diffrant main chackter.
In book 1 til 3, its about a boy who instead of going to pilot academy goes to jedi academy
book 4 til 6, is about a boy who follows in his sister footsteps to go to the jedi academy
book 7 til 9, is about the sister of the boy from the previus arc with stories after she leaves the academy
In both book 7 and 9 is a treatment.
Book 7, after the sister learns that her master and a couple of others are walking in a trap she and her fellow padawans try to run but 1 of the girls get grapped and get a handgag.
In book 9 a full treatment CID happans, in this book the sister learns that her sith father escapes the prison and also that her brother got kidnapped.
When looking for her brother aloung with her father they get captured by boutyhunters and end up with there hands handcuffed behind there back and both get also tape gagged.