http://img1.fantasticfiction.co.uk/images/n59/n295473.jpgKiller (The sixth book in the Pretty Little Liars series)(2009)A novel bySara Shepard Trích: In picture-perfect Rosewood, Pennsylvania, ash-blond highlights gleam in the winter sun and frozen lakes sparkle like Swarovski crystals. But pictures often lie - and so do Rosewood's four prettiest girls. Hanna, Aria, Spencer, and Emily have been lying ever since they became friends with beautiful Alison DiLaurentis. Ali made them do terrible things - things they had to keep secret for years. And even though Ali was killed at the end of seventh grade, 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. Aria's snooping into her boyfriend's past. Spencer's stealing - from her family. And pure little Emily's abstaining from abstinence. The girls should be careful, though. They thought they were safe when Ali's killer was arrested and A's true iden...