Listen. This book is kind of hard to describe. It takes place in a small town called Norse Ridge, Minnesota, which is a lot like any other small town in the Midwest except it has more subterranean caves and people named Olaf. (Also, they eat hotdish, not casserole.) The main character is a kid named Danny Hall, who goes on a hunt with his friends to find their missing history teacher and maybe a little ancient Viking treasure, too. Oh, and I'm the...