Is Mona Vanderwaal

Answer 1

the truth is that mona was the first A and then she died in the fourth book when Spencer found out who she was.... and then there was a second A, or the real alison. alison killed Courtney (her twin who no one knew about but was obsessed with pretending to be alison- the twins got switched so the alison the girls were friends with was Courtney, and the real alison was in a mental hospital) and then came back to rosewood pretending to be Courtney in public, but told the girls she was really alison. for a while all the girls were happy to have alison back (even though they were never friends with alison, they were friends with the real Courtney). alison invites them to her cabin up in the woods and traps them in a room and sets the house on fire in order to kill them once and for all. the girls use a secret escape and go downstairs to find alison trying to hammer all the windows shut. they escape from the house and go outside. once they are all outside except for the real alison, there is an explosion from the fire and everyone assumes the real alison (who tried to kill them) is dead. but at the end of the book, the author steps in the shoes of a girl at a different school who notices the new girl and recognizes her, but can't seem to put her finger on where she knows her. the girl decides she wants to be friends with her and tell her all of her secrets. (it is implied that the new girl is alison, and that she is still alive)