Former best friends Hanna, Aria, Spencer, and Emily, who lost their best friend and leader, Alison, years ago when she disappeared, find themselves in grave danger when they pursue the truth about Alison.

"Deadly, the fourteenth volume in Sara Shepard's YA Pretty Little Liars series, delivers more juicy scandals, dark secrets, and shocking plot twists. This #1 New York Times bestselling series is also a hit ABC Family original TV show. High school seniors Aria, Emily, Hanna, and Spencer have all done horrible things--things that would put them behind bars if anyone ever found out. And their stalker 'A' knows everything. So far A has kept their secrets,...

Struggling to return to normalcy after surviving Alison's attempt to kill them, Spencer, Aria, Emily and Hanna endure a series of disasters before realizing that they are being stalked by a new "A" who knows all of their secrets.

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.

"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 girls living in a wealthy suburb discover the identity of a stalker who has been sending them shocking text messages, and uncover the mystery of who killed their childhood friend.

Former best friends Emily, Aria, Hanna, and Spencer continue to live in fear as they struggle to keep hidden even more secrets and someone new begins stalking them via their cell phones.

"It's spring break, and the pretty little liars are trading in Rosewood for a cruise vacation. They want nothing more than to sail into the tropical sunset and leave their troubles behind for one blissful week. But where Emily, Aria, Spencer, and Hanna go, A goes, too. From scuba diving to tanning on the upper deck, A is there, soaking up all their new secrets. Emily is smooching a stowaway. Aria's treasure-hunting partner is a little too interested...

In the aftermath of the mysterious lodge fire, Aria, Emily, Hanna, and Spencer turn to a surprising new ally to help them discover what happened that night, and to figure out Red Coat's next move. The girls are drawn into yet another murder investigation, one that puts a cloud of suspicion around them and their closest friends and family. With Red Coat lurking in the shadows and the truth about Alison closer than ever, finishing high school has never...

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.