The most dangerous road trip in history continues for thirteen-year-old twins Coke and Pepsi McDonald. Just when they think they are safe, the McDonald twins are chased by an evil Elvis impersonator, trapped in a pool of flesh-eating soda pop, nearly pulverized in a giant shredder, and crushed in a turbo-charged carnival ride. Worst of all, no one believes them! Will they make it out alive? Will they ever find out who's really after them? All bets are off in this explosive third book in the Genius Files series.