The most exciting road trip in history continues! In this third book in the thrilling, New York Times bestselling adventure series, twelve-year-old twins Coke and Pepsi McDonald dodge nefarious villains all the way to Graceland.

The genius twins Coke and Pepsi have narrowly escaped a vat of a Spam, a pit of boiling fry oil, and a score of crazed adults all bent on killing them. But just when they thought they were safe, their arch nemesis Dr. Herman Warsaw reappeared, engaged to their Aunt Judy! Whoa?didn't he die already?! Now, as the twins continue their family road trip from Washington D.C. through the South, it will take every bit of their genius abilities to outwit their wacky enemies. It doesn't help that their parents remain totally oblivious! When they finally get to Graceland, Elvis's home in Memphis, Tennessee, Coke and Pepsi come to an explosive conclusion you'll have to read to believe!

With Dan Gutman's laugh-out-loud humor and featuring photos and weird-but-true American tourist destinations like the National Jousting Hall of Fame, The Genius Files is a one-of-a-kind mix of geography and fun.

Don't miss the next action-packed book, The Genius Files #4: From Texas with Love!

Dan Gutman is the New York Times bestselling author of the Genius Files series; the Baseball Card Adventure series, which has sold more than 1.5 million copies around the world; and the My Weird School series, which has sold more than 36 million copies. Thanks to his many fans who voted in their classrooms, Dan has received nineteen state book awards and ninety-two state book award nominations. He lives in New York City with his wife. You can visit him online at dangutman.com.