Scenario: You're sitting on a raft on a fast-flowing river. There are cameras on the banks of the river. You're wired for sound. Ahead you can hear the sound of white water. A rapid? No, it's a waterfall. Welcome to the Xtreme World of Billy Kool. Thrill-packed new series from the author of the best-selling Toocool books! In the new Xtreme series, the adventure moves from the backyard to an extreme sports television program. Each book in the series features a different extreme sport. Readers will be hooked from the word GO!