In eight days, Coke and Pepsi McDonald are going to turn 13. Before then, theyll jump off a cliff, get trapped in the locked basement of their burning school, chased cross-country by murderous lunatics, left for dead in the pit of a sand dune, forced to decipher mysterious coded messages and visit the worlds largest ball of twine. n nThe most exciting road trip in history begins In this action-packed, New York Times bestselling adventure, twelve-year-old twins Coke and Pepsi McDonald embark on a family vacation youll have to read to believe.n nWith the real-kid humor that has earned Dan Gutman millions of fans around the world, and featuring weird-but-true American tourist destinations, The Genius Files is a one-of-a-kind mix of geography and fun.n nAs Coke and Pepsi dodge nefarious villains from the Pez museum in California all the way to the Infinity Room in Wisconsin, black-and-white photographs and maps put young readers right into the action.n nAnd dont miss the next leg of the journey in The Genius Files: Never Say Genius n n n