Pretty Little Liars Book #1 Post #4

In this book from pages 122- 136 Aria is in English class when she suddenly feels sick. She runs to get a hall pass and runs out the door heading for the bathroom. After she feels better she goes to return to class then all the sudden her phone starts buzzing, its a text message from "A". Aria now very confused spins around and is face to face with the Alison DeLarentos memorial, she is shocked. But then to make matters worse theirs a sticky note on the side that reads," Don't you want to know who I am, well im closer than you think, Love- A"