17 is the 17th book in the Pretty Little Liars series. The book will serve as a three part "fanfiction series" based off of Emison.
We all know Real Ali as the diabolical maniac who systematically murdered her twin sister, Ian Thomas, and everyone else who got in her way—including attempts Emily, Spencer, Hanna, and Aria. But what if there’s more to her than that? What if Ali’s quest for revenge against the girls wasn’t born the day Courtney switched with her but later? And what if she felt a secret, forbidden love for one of them, a love that chose her to make impulsive decisions—and foolish mistakes?
Drawing off the popularity of Emily and Alison as a couple on the show, three e-books tell the tale of Ali in love…and the real story of her descent into madness.
Sara Shepard announced the three part fanfiction books on Instagram, November 11th.
The books will go into Ali's love lives, and will reveal when her hatred towards the girls really started.
Ali's hatred began after Courtney switched places with her sister.