|“||I can't explain it, I just... I feel like something really bad happened here.||”|
— Aria Montgomery
Alison was attacked by "A" in. It appeared in The First Secret. It is located at 313 Mockingbird.
Later, during Noel's party, the girls receive a text from Alison telling them to meet her there because she needs help. Inside, they see an old dollhouse and a suit hanging in a doorway. Locked inside a room, they see Ali being attacked by a person in a creepy Halloween costume. The girls climb out the window and return to help Ali, but find her sitting in a rocking chair and realize it was all a hoax.