I had a life anyone would kill for. Then someone did.

I may not remember much, but I know I led a charmed life. Even in death I''m getting something no one else does: an encore performance, thanks to Emma, the long-lost twin sister I never got to meet. Now, in order to figure out what happened to me, Emma needs to become me. But can she laugh at inside jokes with my best friends? Convince my boyfriend she''s the girl he fell in love with? Hug my parents good night like she''s their daughter? And can she keep up the charade even after she realizes my murderer is watching her every move?

Let the lying game begin.

Sara Shepard's first story ever, which she both wrote and illustrated, was about friendly yellow creatures that lived in a backyard garden. It won second prize at the State College, Pennsylvania, library, and was bound and placed on the shelf. (The binding was yellow. The book was called Quizzles. Maybe it's still there!) Sara Shepard's second story was about a five-legged camel named Lloyd and his band of friends journeying through the human circulatory system.

When Shepard was young, the things she wanted to be when she grew up were a soap opera star, a designer for LEGO, a Claymation artist, a geneticist, a fashion magazine editor, and, most of all, a writer. She grew up in Pennyslvania, on Philadelphia's Main Line, and went to college at New York University in 1995, the height of the club kid era. While in college, she bought many pairs of purple vinyl pants, loud leather jackets, brightly colored club kid sneakers, and even a Day-Glo pacifier. After recovering from that unfortunate but short-lived phase, she had a series of jobs? interning at Elle magazine, filing important documents at J.P. Morgan, and writing and editing at Time Inc. At each of these jobs, she kept a separate folder on her computer of stories she wrote when she had free time. Eventually, she got an MFA at Brooklyn College, started receiving evil text messages from someone only known as A, nearly got run over by her best friend's SUV, and kept thinking she saw dead people everywhere.

Actually, that last part didn't happen. But Shepard did have all these ideas when preparing for her young adult series, Pretty Little Liars. It's now five books strong?the sixth in the series, Killer, is out in June 2009. She's also the author of an adult novel, The Visibles, which is out in May 2009, as well as the reluctant parent of three slobbery dogs. She and her sister, Alison, have also been creating many joint creative projects for years (Claymation movies, art installations, video game designs) based on a world they made up when they were 6 and 9 years old. They're pretty sure they're the only ones who find the world funny, though.

"I had a life anyone would kill for. "

"Then someone did."

The worst part of being dead is that there's nothing left to live for. No more kisses. No more secrets. No more gossip. It's enough to kill a girl all over again. But I'm about to get something no one else does--an encore performance, thanks to Emma, the long-lost twin sister I never even got to meet.

Now Emma's desperate to know what happened to me. And the only way to figure it out is to be me--to slip into my old life and piece it all together. But can she laugh at inside jokes with my best friends? Convince my boyfriend she's the girl he fell in love with? Pretend to be a happy, carefree daughter when she hugs my parents good night? And can she keep up the charade, even after she realizes my murderer is watching her every move?

From Sara Shepard, the #1 "New York Times" bestselling author of the "Pretty Little Liars" books, comes a riveting new series about secrets, lies, and killer consequences.

"Let the lying game begin."