Unbelievable (Pretty Little Liars, Book 4)

#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.

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. These liars have tried to keep their scandals secret, but the truth is about to rock their pretty little world!

Full of unexpected twists and shocking revelations, Unbelievable is the fourth book in New York Times bestselling author Sara Shepard’s compelling Pretty Little Liars series.

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Published May 27, 2008

368 pages

Average rating: 7.78

27 RATINGS

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Community Reviews

Cyn's Workshop
Aug 20, 2025
8/10 stars
Unbelievable brings the first story arc of the Pretty Little Liars series to an unbelievable turn with amazing suspense and thrill to reveal just who is stalking these four girls. A solid premise that has evolved to an extraordinary series. Read on for the full review.
Emertainment Monthly Review
An 'Unbelievable' Novel | Cyn's Workshop

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