Book excerpt: Alison and Jessica were the best of friends of middle and high school. Fifteen years later, Jessica, now an up-and-coming journalist, learns that Alison has been killed in a car accident. But that's not the most troubling part of this tragedy. Alison died with a secret that only she, Jessica, and a small group of friends know. Her fear is that secret didn't die with her friend. If it didn't, what does that mean for her and the others who know what happened all those years ago?