the wackiest road trip in history continues in book four of the new york times bestselling genius files series following twins coke and pepsi as they dodge villains and visit weirdbuttrue landmarks from texas all the way to roswell new mexico with the realkid humor that has earned him millions of readers around the world and featuring all new weirdbuttrue locations around america this fourth book in the new york times bestselling genius files series is absolutely battyafter their explosive escape at graceland twins coke and pepsi are ready to resume their trip across americaonly now in a convertible instead of the rv they travel through arkansas and oklahoma visiting weirdbuttrue tourist stops along the way and finally end up in texas home of the weird capital of the country austin the twins many enemiesthe bowler dudes mrs higgins and dr warsawall swear that theyre done chasing coke and pepsi for good but when the twins start receiving more codes and ciphers from a mysterious robotic voice they know someones after them they just have to figure out who before the mystery villain finds them first