I'm sorry if I don't answer this right, but in refferal to A, the reason alison does this is because she doesn't want the secret out. (She kills courtney earlier in the season) and courtney has told the liars all about her secret and practically destroys ali's life, getting revenge she kills courtney and then starts texting the liars but has a few minion-type high school kids helping her (mona&jenna). The overall reason is because she is afraid that if the liars tell something might happen.....
Alisons Real Name Off Of Pretty Little Liars Is Sasha Pieteres
Just look up a picture of Allison from Pretty Little Liars, because they are identical twins.
The lost rosewood resort
she is dead so her friends are trying to find the person who killed her
because the liars didnt believe that she was Ali and then she got shipped off to Radley
She got killed on the first one! It's called "The Pilot". :)
Yes. She had the girls and the girls fooled the whole time!!
Aria, Spencer, Hannah , Alison, and Emily set fireworks off inside the shed
Possibly...there is still one (I think) book left in the book series.
Courtney is mental so alison is playin Courtney and her parents don't so they ship her off to go to mental school
First it was Mona but after Spencer pushes her off a cliff , the next A is actually ALISON without anyone finding out .
I think Mona dies by falling off a cliff because she tryed to push spencer off to kill her because she knew that she was -A. And apparently Jenna dies by Alison because she knew about the switch.(I think) P.S. Alison isn't dead it is her twin sister Courtney that died. Hope I answered your question :)