The Trail of Lost Time by R. A. Montgomery takes YOU on a magical time-traveling adventure around the world. 9-12 year old readers will visit the ancient lands of the Anasazi and explore a time when wooly mammoths roamed the earth. Choose Your Own Adventure The Trail of Lost Time is an interactive adventure book in which YOU decide what happens next. Your grandfather has passed away, leaving you his most-treasured possession: a magical map that allows you to travel back in time. But do you know how to harness the map's immense powers? If you venture back into the past, will you ever get back to the present?