Pretty Little Liars - Book character: A, Alison DiLaurentis, Amelia Pennythistle, Aria Montgomery, Ben Coogan, Billy Ford, Characters, Chloe Roland, ... Hanna Marin, Ian Thomas, Iris, Isaac Colbert

Source: Wikia. Pages: 38. Chapters: A, Alison DiLaurentis, Amelia Pennythistle, Aria Montgomery, Ben Coogan, Billy Ford, Characters, Chloe Roland, Courtney DiLaurentis, Darren Wilden, Emily Fields, Ezra Fitz, Hanna Marin, Ian Thomas, Iris, Isaac Colbert, Jason DiLaurentis, Jenna Cavanaugh, Jessica DiLaurentis, Kate Randall, Klaudia Huusko, Lucas Beattie, Maya St. Germain, Melissa Hastings, Meredith Gates, Mike Montgomery, Mona Vanderwaal, Mr. Roland, Naomi Zeigler, Nicholas Pennythistle, Noel Kahn, Olivia Caldwell, Pam Fields, Peter Hastings, Riley Wolfe, Sean Ackard, Spencer Hastings, Tabitha Clark, Toby Cavanaugh, Tom Marin, Trista Taylor, Unbelievable, Veronica Hastings, Wren Kim, Xavier Reeves, Zach Pennythistle. Excerpt: "A" is an anonymous entity who sends embarrassing and often threatening texts to Spencer Hastings, Aria Montgomery, Emily Fields, and Hanna Marin. There are two different "A" throughout the series. The first "A" is Mona Vanderwaal and the second "A" is Alison DiLaurentis. Three years after the disappearance of "Alison" DiLaurentis, her four friends each receive a text/email from someone calling themselves "A". The girls had drifted apart over the years, so they had no idea that other people were getting texts as well. Additionally, the texts were about secrets only "Ali" knew about. At first the messages were simply teasing and all of the girls wonder if their missing friend was the one who sent them. Though they knew she was most likely dead, she was still the only one who knew their darkest secrets. Once Ali's body is discovered in her old backyard, the girls are even more baffled. At Ali's funeral, the girls are reunited and they find out that they've all been receiving weird messages. As the girls stand outside after the funeral ends they all get a text saying "I'm still here, bitches. And I know everything. -A" From that point on, the messages take a distinctly more threatening tone. Aria is given an ultimatum to tell her her mother a...