The 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 you'll have to read to believe.

With 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.

As Coke and Pepsi dodge nefarious villains from the Pez museum in California all the...

The most dangerous road trip in history continues in the wacky third book of Dan Gutman's New York Times bestselling The Genius Files series, following twins Coke and Pepsi McDonald as they dodge nefarious villains all the way to Graceland. With the real-kid humor that has earned him millions of readers around the world, and featuring all new weird-but-true locations around America, this third book in the New York Times bestselling Genius Files series is one wild ride

The genius twins Coke and Pepsi have narrowly escaped a vat of a Spam, a pit of boiling fry oil,...