#1 New York Times bestselling series Fans new and old will love this bind-up of the third and fourth novels in Sara Shepard's #1 New York Times bestselling Pretty Little Liars series, Perfect and Unbelievable. Ever since high school juniors Spencer, Hanna, Aria, and Emily started receiving anonymous notes from "A," their lives have become living nightmares. A knows everything about them, from their tiniest mistakes to their deepest, darkest secrets. The girls are desperate to keep A from revealing the truth—even if it means doing the horrible things A demands. In this bind-up of the third and fourth novels in the bestselling Pretty Little Liars titles, secrets are unearthed, identities are revealed . . . and four pretty little liars finally get the answers they've been looking for.