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,...