One A has been captured…but the most dangerous A of all is still out there in the penultimate installment in Sara Shepard's #1 New York Times bestselling Pretty Little Liars series. High school seniors Aria, Emily, Spencer, and Hanna barely survived their most recent encounter with A. And it's not over yet…. The police don't believe there's another, deadlier, A out there, but the girls know what-and who-they saw. If they don't track down this final tormentor soon, A will silence them forever. Sara Shepard's fan base continues to grow as ABC Family's hit Pretty Little Liars TV show draws in new readers to the #1 New York Times bestselling series. Full of unexpected twists and shocking revelations, the second-to-last novel ramps up the stakes for the jaw-dropping series conclusion in Pretty Little Liars #16.