When is a summer vacation not really a summer vacation?Sunny Lewin has been packed off to Florida to live with her grandfather for the summer. At first she thought Florida might be fun -- it is the home of Disney World, after all. But the place where Gramps lives is no amusement park. It's full of ... old people. Really old people. Luckily, Sunny isn't the only kid around. She meets Buzz, a boy who is completely obsessed with comic books, and soon they're having adventures of their own: facing off against golfball-eating alligators, runaway cats, and mysteriously disappearing neighbors. But the question remains -- why is Sunny down in Florida in the first place? The answer lies in a family secret that won't be secret to Sunny much longer...