From the first sentence, I knew The Genius Files would be funny. After all, a story that begins with the main character and his sister jumping off a cliff has got to be funny. The story is gripping and hilarious. Even their names are funny: Coke and Pepsi. For example, the places they visit, the Biggest Ball of Twine in Minnesota, and the Burlingame Museum of Pez Memorabilia. The book reads like a combination of the 39 Clues and Whales on Stilts—and throw in the Bones comics as well. The story involves a very unhealthy fire set by the health teacher; terrorists trying to blow up a ball of string; and a really, really long room—the infinity room—at a hotel called “The House on the Rock.” If Dan Gutman ever writes a sequel, I’ll be the first to get it.