Someone knows
(Book)

Twenty years ago, a horrific incident shattered the lives of 5 teenagers, including Allie. They played a dangerous prank that went tragically wrong. They never told anyone, believing that getting caught would be the worst thing that could happen. But time has taught Allie otherwise; not getting caught was far worse. The dark secret has eaten away at her, distancing her from everyone she loves. She has punished herself, and it is a life sentence. Now she is heading home to the funeral of a friend, and that means seeing other people with whom she shares the secret. She is ready for a reckoning, determined to learn how the prank went so horribly wrong. But the answer shocks her... [From publisher's description]