Art Elfee may seem like just any other ordinary 16 year-old boy about to finish secondary school, but he has an amazing secret - he has discovered an opening to a world where the legend of Santa Claus is possibly very real indeed. He also has another secret - one of his best friends is one of the inhabitants of that world - a small feisty Sprite named Maga. As if trying to keep these secrets isn't hard enough, a dark, shadowy figure has followed him back to his own world; but when Art tries to discover who he is, he uncovers a shocking truth about someone very close to his heart, that may...