Gabbie Flowers never imagined that winning the school mural contest would turn into a nightmare. She knew her friend could be mean, but she never thought she had the power to make her favorite thingslike flying through the night sky with her invisible friend Samuel, and visiting her mother in Heavencome to a crashing halt. Samuel holds the key that can put the bullying to rest, but due to Gabbies fear, she can no longer see him. Desperate, he must find a way to get her attention before he, and the key, disappear from her life forever.