Books like Shiver the Whole Night Through

After months of bullying and romantic heartbreak, seventeen-year-old Aidan Flood feels just about ready to end it all. But when he wakes up one morning to find that local beauty and town sweetheart Sláine McAuley actually has, he discovers a new sense of purpose, and becomes determined to find out what happened to her. The town is happy to put it down to suicide, but then one night Aidan gets a message, scratched in ice on his bedroom window: 'I didn't kill myself.' Who is contacting him? And if Sláine didn't end her own life... who did?