For years scandal has rocked Rosewood, Pennsylvania - and high school seniors Aria, Emily, Hanna, and Spencer have always been at the centre of the drama. They've lost friends, been targeted by a ruthless stalker called A, and narrowly escaped death. And it's not over yet.

Rewind to junior year in Rosewood, Pennsylvania, to a winter break no one has ever heard about. Fat snowflakes fall onto manicured lawns and everyone is at peace, especially Hanna, Emily, Aria, and Spencer. Now that Alison's murderer is in jail and A is dead, they can finally relax. Little do they know there's a new A in town.

In Rosewood four beautiful girls are haunted by a very ugly past. Spencer, Aria, Hanna and Emily want nothing more than to forget Alison DiLaurentis, their former best friend. But someone refuses to let her memory die. A is still out there, lurking in the shadows and digging up the pretty little liars' newest secrets.

Vicious is the explosive conclusion to Sara Shepard's No 1 New York Times bestselling Pretty Little Liars series, perfect for fans of the hit TV show based on the series.

Toxic is the fifteenth - and second-to-last - volume in Sara Shepard's No 1 New York Times bestselling Pretty Little Liars series, also a hit TV show.

Deadly, the fourteenth volume in Sara Shepard's No. 1 New York Times bestselling Pretty Little Liars series - also a hit television series - is bursting with more scandals, secrets, and drama than ever.