There is too many.
She knew all about Ali's secrets and her familys secrets and she was going to tell the four pretty little liars.
because A has so much against them, the person wants to kill them to get all their secrets out
She has Ali's old diary from when she died and knows all of their secrets!
same way mona did.she looked at courtneys diary which had all there secrets in there.
Mona found Courtney's diary after she died. That's how she knew all the secrets.
Pretty Little LiarsFlawlessPerfectUnbelievableWickedPretty Little SecretsKillerHeartlessWantedTwistedRuthlessStunningPretty Little Secrets was not published as the fifth book, it was published eleventh, but in order to read it correctly read it after Wicked which is the fifth book.
All of the books in the Pretty Little Liars series
In Pretty Little Liars, Mona was able to uncover all the secrets of the main characters through her observations, manipulations, and tracking their movements. She was highly intelligent and used her resources to gather information and exploit the vulnerabilities of the liars. Additionally, Mona had a knack for decoding clues and piecing together the puzzle of their secrets.
Mona is A. Mona was upset that Hanna had all these secrets that she never directly told her.
None of the pretty little liars die. I've read the books, Ali doesn't kill anyone.
A, it' all A! xx
Mona. Then Toby