Book excerpt: Wow, is File Island strange! There are telephones that never ring, trolley cars with no passengers, and weirdest of all, there are these evil Black Gears that fly around and take over good Digimons, turning them into ferocious monsters who want to chomp on Matt, T.K., Mimi, and the rest of their human and Digimon pals for lunch! Lucky for everyone, all it takes is a little digivolve into forms powerful enough to take on the evil monsters. Sound too bizarre to be true? Well then, read this and see for yourself!