Pretty Little Liars saga:
This books are about a group of friends (Ali, Hannah, Spencer, Aria & Emily).
This girls get in lots of troubles when one of the girls (Ali) is killed by a unknown person.
When she die the rest of the girls start gettin messages from A ( who knows everything about they)
"A" isn't jus one. A is a team, a group o people who suffer because of Ali and the girls and want revenge.
At the end of each book people discover who is A
in the A team:
-Toby: Spencer's boyfriend
-Mona: Hannah's best friend
-Spencer: in a moment she decide to be on A team
-Jenna: Toby's sister
-Lucas: Hannah's friend
The real A is Ali. The real Ali the killed one is Courtney, Ali's twin
The books have a serie and its on the season 4, "Courtney" is going to be on the story after this season