When one of their tightly-knitted group mysteriously disappears, four high school girls find their friendship difficult to maintain when they begin receiving taunting messages from someone who knows their secrets.

"Emily's been shipped off to Iowa to live with her berconservative 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"--P. [4] of cover.

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.

When Ali befriends four middle school classmates, she helps them achieve popularity at the price of doing whatever terrible thing Ali wants. Now, three years later, the four girls think they can put the awful experience to rest unless Ali has more in store for them.

Hanna, Spencer, Emily and Aria are trying to move on and forget about their old friend Alison DiLaurentis and all the torture she put them through, but someone is trying to keep her spirit alive.

"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...

"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,...

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.

In the weeks leading up to Ali's murder, Ali reveals her plots against Emily, Hanna, Aria, and Spencer, as well as a dark secret that has the potential to destroy everything.