Danny Tucker was barely a teen when he had his first encounter with the magic of a Trevalian Cube. He learned a great deal about what could be done by descendants of Trevalia who link with a Cube, and how dangerous that power can be in the wrong hands. Yet did he know all there was to know about the Cube's magic?When his dreams are invaded through magic, Danny begins a journey to search for the meaning of those dreams. He finds himself intercepted and taken prisoner, but that is just the first step in a journey full of discoveries that the young man had never dreamed of.Meanwhile his sister Susan travels back to the planet where their adventures began years ago, to enlist the aid of Daynan Trevalia to search for Danny. They start a sequence of events that lead them on a quest far more dangerous than they could have imagined.