In the book Pretty Little Liars: Flawless #2 (and #1)there has been a person who knows every pretty little secret.  This person can also be known as the antagonist.  Throughout the book 'A' has been leaving messages to the girls.  What kind of messages? you might think.  Well messages that you don't want to get.  Those messages that you get scared by.  'A' has been sending the girls threatening things about secrets only the dead girl knew.  Was this 'A' a friend of Ali's?  Well i don't know maybe it was or maybe its just a stoker that has been following them fro the past years.
    The antagonist must be everywhere at once.  'A' knows everything from the moment it happens.  Once this 'A' person has sent a message to Hanna (One of the main characters) about her dad.  How can 'A' know this has happened if it literally happened a couple of seconds ago.  Strange huh.  Lately in the book 'A' has been sending messages like:
" I'm watching you, you'd better do what is say or else
-A"
    This 'A' person sure is on creepy stoker.  I really wonder what the or else is all about.  Any who what I got out of the book is that this person is one you don't want to hang out with or even be in the same room as them because they are one creepy person.  Another thing that i found out about this character is that it can be anyone!
Some people are starting to act like it so are they 'A' or does 'A' have helpers?