Teen Scream Movie Queen Sharlene Gallagher was the biggest thing to happen to Primrose, Texas...until she died. Now she's back as a guardian angel on a mission: solve murders before they happen. Her murder is first on the list. If she doesn't succeed, her charge will die. If she does, she'll earn her spot in The Guardian. Makeovers, murder and mayhem. What more could a girl want? High School's Never Been Easy; Now It Just Might Be Murder. Dead Girl Walking, The Guardian Book 1 by Mary Beth Lee starts the Sharlene Gallagher mystery series, a series enjoyed by people of all ages.