She has a secret twin that is mental & instead of sending her twin to the mental hospital. They send her & that's basically it.
Mona mellisa garret alis twin sis
she got a hold of ali`s(courtnys) dairy where Maya moved in to alis old house and threw out all of alis stuff out. Mona found it and read it, ali(courtny) keep a dairy on everthing they did and she put all her secrets in it and not only about her but of Spencer Hannah Emily and aria
Theres two alis, ali has an identical twin.. called Courtney
alis mom told the world about alps twin courtney.and turns out courtney was the REAL ALI.ali killed courtney so ali changes the story around when she told the pretty little liars that she's the real ali.but then she tricks them again and tries to kill them and admits that she killed jenna courtney and ian and trie to kill them too and also tried to kill melissa.
in the 4th book mona is a because she finds alisons diary in a pile of alisons old stuff that was getting thrown out because Maya was moving in. and since the girls and alison where so mean to her when she was dorky, she wanted revenge.
That's Actually A dummy or a realistic doll. Oh and that's not Ali, its Chelsea Alis twin sister. Read it in Wanted the last book in the series
the ali that the girls knew was really courtney alis twin sister wich explains why she suddenly became friends with them. the real ali ends up killing the ali that the girls were friends with so the body in the hole is courtney. but in the very end when the real ali comes back she tries to kill the girls in a fire but after the fire she may have excaped but its very unlikely so to answer ur question the girl that the characters are friends with died
Spencer accidentally killed Mona, Mona offers Spencer the chance to be "A" with her but Spencer refuses and Mona tries to kill Spencer and they struggle but Mona ends up falling off the cliff.
Well fellow PLL fan during the haloween episode ali tells a story about two twins and that one murdered the other...so that gave kinda a hint but.. I think next episode we find out about alis twin :)
well Ian Thomas (Melissas boyfriend at the time) was secretly dating AAli. they went to the hole in alis backyard to talk. she told him she would tell Melissa about them dating if he didnt break up with her so he got angry and pushed her into the hole where she died
In book 1, 2, 3, and 4 in the pretty little liars series "a" is mona vanderwaal. however, in the rest of the series "a" is alison dilaurentis See, when ali was born she had an identical twin named Courtney. But Courtney was mentally ill, so she was shipped to a mental institute. so no one ever knew about her. but ali and Courtney switch one day. Courtney dumps riley and naomi alis new besties and befriends, Aria Montgomery, Spencer Hastings, Emily Fields, and Hanna Marin. four total losers. ali comes back and on the night of "alis" dissapearance and kills Courtney by pushing her into the hole where her family was buliding the gazebo for ruining her pefect life i hope that this answer was put to good use for you
Alison on pretty little liars is her twin sister Cortney Alison had a twin sister called Courtney, they were identical and courtney was jealous of alis life and one time tried to kill her so that she could have alis life. That's when the family knew she was crazy and decided to send her to the Radley, a mental hospital. .She stayed there for a while but then came home for a while because she was going to a different mental hospital, The preserve. While she was home, She stole Ali's a-is-for-Ali ring and pretended to be Ali. She then went outside and talked to aria, Spencer, emily and Hannah like she was best friends with them. And then alis mom took the real Ali by the hand and shouted outside to Courtney (who she thought was Ali) and sed they were leaving for the Preserve. Courtney turned around and said "bye!" the real Ali pleaded with her mom that she was the real Ali but her mom didn't believe her because she didn't have her Ali ring. So Ali went to the preserve and spent four years there, and then came home on the night of the big sleep over . She waited for Courtney to storm out of the barn and wen she did she killed her. Read the rest....my fingers are tired.