When one of their tightly-knit group mysteriously disappears, four high school girls find their friendship difficult to maintain when they begin receiving taunting messages from someone who seems to know everything about their past and present secrets.

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 who knows damaging secrets about them.

The stalker's identity has finally been revealed but high school juniors Spencer, Emily, Hanna, and Aria seem condemned to repeat the past as they resume their unrepentant ways.

On trial for murdering an actually still-alive Alison DiLaurentis, only Aria, Emily, Spencer, and Hanna know they have been framed and resolve to beat Ali at her own game.

"It's springtime in Rosewood, but while everyone else is searching for the perfect prom dress, Hanna, Spencer, Emily, and Aria are on a different kind of hunt: They're looking for A. Hanna puts her campaign for prom queen on the back burner to volunteer at a burn clinic, where one of A's victims is recovering. Emily digs into Ali's past at the mental hospital with some very crazy consequences. Spencer contacts an amateur private eye to help her stalk...

Four friends band together against an anonymous foe who threatens to reveal their darkest secrets.

Season five begins in the moments following the epic season four finale, in which Ezra was shot, among other shocking revelations. Plus, Alison is alive, and everyone is affected by her return. Caleb also returns, but is he the same? With more questions than ever and familiar faces back in Rosewood, it's sure to be another season of emotion, intrigue, twists and thrills.

In season six, the series leaped forward five years, when a shocking event brought the girls, now young women, together again, back in the town of Rosewood, to face a new threat. Now, in the seventh and final season of the hit drama series, the PLLs band together to unearth answers to the last remaining secrets and take down "Uber A" for good in the most romantic season yet.

#1 New York Times bestselling series

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

Hanna, Aria, Spencer, and Emily have been lying ever since they became friends with beautiful Alison DiLaurentis. And their bad-girl ways didn't die with her. Hanna's on a mission to corrupt Rosewood's youth, starting with a very attractive sophomore.

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#1 New York Times bestselling series

Perfect for fans of the #1 New York Times bestselling series and the hit ABC Family TV show, this Pretty Little Liars prequel novel reveals Ali's secrets from before she was murdered.

Rewind a few years to seventh grade: Alison DiLaurentis and her friends are the It girls of Rosewood Day. Boys want to date them. Girls want to be them. But even though they seem to

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