Franklin W. Dixon , is the pen name or house name that has been used for all Hardy Boys books, except for the graphic novels and Nancy Drew and Hardy Boys SuperMystery. For the Nancy Drew crossover books the Nancy Drew house name, Carolyn Keene, was used. A tribute to Franklin W. Dixon was found in the second-person narrative "Choose Your Own Adventure" book Longhorn Territory, where the reader is given the option to work as a rider for the Pony Express. One of the station masters is named Frank Dixon.