This 4-book boxed set of interactive, children's classics contains four bestselling books from the Choose Your Own Adventure gamebook series, written by R. A. Montgomery, together in a bright gift box. Ages 9-12 | Grade Levels 4-8 | Choose from 119 Possible Endings This 4-book boxed set of interactive, children's classics contains four bestselling books from the Choose Your Own Adventure gamebook series, together in a bright gift box. * Mystery of the Maya by R. A. Montgomery takes YOU on a daring adventure to Mexico to find your lost friend! 9-12 year old readers can travel back in time to search for their friend Tom, becoming a great Mayan warrior or the next human sacrifice - or they can remain in the present, becoming a double agent fighting a modern revolution!  * House of Danger by R. A. Montgomery takes YOU on a thrilling adventure investigating criminal activity and a dark history in your town!