Everyone has something to hide—especially high school juniors Spencer, Aria, Emily, and Hanna. Spencer covets her sister's boyfriend. Aria's fantasizing about

Hanna, Spencer, Emily and Aria are trying to move on and forget about their old friend Alison DiLaurentis and all the torture she put them through, but someone

#1 New York Times bestselling series The fourth book in the #1 New York Times bestselling series that inspired the hit ABC Family TV show Pretty Little Liars. F

High school seniors Aria, Emily, Hanna, and Spencer have been tortured by A for too long. Now they're determined to take the fight to A . . . even if it's the l

After their friend who has been missing for more than three years turns up dead, four former best friends continue to receive frightening messages from someone