Alison has a twin sister named Courtney who has mental problems and that is why we never hear of her until the last book when Alison killed Courtney and that is the body they found and i don't want to give everything away but keep reading and watching
yes her name is courtney, she was pretending to be ali the whole time ali was in a mental hospital
Yes. Alison had a twin sister named Courtney.
yeah, courntney (alison´s twin) convinced her parents that she was Allison so they send the real Allison to the hospital
No They were just friends
no
Courtney
The real Alison did but the Alison they knew who was really Alisons twin named Courtney didnt.
Just look up a picture of Allison from Pretty Little Liars, because they are identical twins.
Jenna is Toby's step sister in pretty little liars. She got blind after Alison threw the stink bomb into the house,unaware of someone being in it.
Torrey DeVitto
No, her twin sister Ali did.
Courtney Alisons twin sister
because she knows that a wasent mona ant that it was alisons twin sister
Alisons Real Name Off Of Pretty Little Liars Is Sasha Pieteres
2 allisons...twin sisters
alisons isn't even dead its her twin sister Courtney that was killed . alison and mona are A
Alison is really dead it's her twin sister that is fooling them and Mona is in on it and Spencer kills Mona
Ali wanted revenge after her sister took over her life and she believed the pretty little liars helped her do so....she wants revenge.
yes
The braclet is Alisons. It is evidence of who killed Alison. It has tracees of someone elses blood on it the night Alison was killed.
The real Alison did but the Alison they knew who was really Alisons twin named Courtney didnt.
the night her and mona did the ouja board She called alisons mom and said she thought she saw Ali and she was alive
she get killed by her sister Ali