Valerie Barnes is tired. Tired of wrangling snarky teens through their math lessons, tired of helicopter moms with no respect and even less kindness, and - most importantly - tired of hearing about Canary Lane High's upcoming homecoming dance. She's been planning it for months and promises, if only to herself, to give the kids a night they'll never forget.But when strange things start happening and people's lives are threatened in the days before...