Unbelievable (Pretty Little Liars Series #4) »

Sara Shepard graduated from NYU and has an MFA from Brooklyn College. She currently lives in Tucson, Arizona. Sara's Pretty Little Liars novels were inspired by her upbringing in Philadelphia's Main Line.

Four pretty little liars' charmed lives have turned into living nightmares.

Emily's been shipped off to Iowa to live with her überconservative cousins. Aria's boyfriend is behind bars—because of her. Spencer's afraid she was involved in Ali's murder. But Hanna's fate is far worse: She's clinging to life in the hospital because she knew too much.

If these girls don't start listening to me, Hanna's going to look like the lucky one.