Christmas thought her ADHD was a liability. Turns out, it is a superpower. Seventeen-year-old Christmas Miller is looking forward to a summer of sunbathing and waterskiing at her home in Sweet Lake with Lexi, the one friend who gets her completely, ADHD and all. But the day of Lexi's arrival, the girls have an almost-argument and worse, that night, they discover another friend, Lemy, floating face down in the lake. Though reeling...