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Ali had a twin no-one knew about. (Courtney)
Courtney had mental problems and had to go to a mental centre for mental people but she didn't want to go so she pretended to be Alison, her sister. their parents believed she was Alison and sent the real Alison to the mental center instead of Courtney. so basically the Pretty Little Liars were best friends with Courtney not Alison.
Alison escaped from the mental center and was angry at Courtney, i guess she became a little mental from being treated like she was mental for a year. anyway she came and buried Courtney alive at the night of the sleepover as revenge for what happened to her.
What else can I help you with?
Who is Issac from Pretty Little Liars?
Isaac is Emily's boyfriend in Pretty Little Liars. Yes, they hook up. BUT, Isaac breaks up with Emily when she technically tells him that this mom is totally psycho. He doesn't believe her, even though it's true.
What is the first book in the Pretty Little Liars series?
Pretty Little Liars!
Who is Louis on Pretty Little Liars?
there's no Louis in pretty little liars.
Does Spencer from Pretty Little Liars die?
No, Spencer from Pretty Little Liars does not die.
Is there a new Pretty Little Liars book?
there is not a new pretty little liars book
How did Ezra die on Pretty Little Liars?
Ezra did not die on Pretty Little Liars.
Who plays trista on Pretty Little Liars?
No one there is no trisa on pretty little liars
What are the names of pretty little liars?
The books in the Pretty Little Liars series are:Pretty Little LiarsFlawlessPerfectUnbelievableWickedKillerHeartlessWantedTwistedRuthlessStunningBurnedCrushedDeadly
Which is the second book in the Pretty Little Liars series?
Flawless: A Pretty Little Liars novel
Was Mona the killer in Pretty Little Liars?
No, Mona wasn't the killer in Pretty Little Liars
Why is Mona messing with the Pretty Little Liars?
Because the used to pick on her, (The Pretty Little Liars)
Is Mona blind in Pretty Little Liars?
No. Jenna Marshall is blind on Pretty Little Liars
