Secret of the Knights By (author): "Richard Hescox, Jim Gasperini"Genres:Fiction books Childrens books Gamebooks books Choose Your Own Adventure books ISBN0553269607ISBN139780553269604AsinSecret of the KnightsOriginal titleSecret of the KnightsSeriesTime Machine #1Secret of the Knights (Time Machine, No. 1) Mass Market Paperbackby Jim Gasperini (Author) , Richard Hescox (Illustrator)