Winter comes early to Ravenswood House for Fin Butler and his friends Jenny, Eiry and Sed.  Locked into a winter of discontent, they are thrown into an adventure where they have to protect their new friend Chloe from those who would exploit her powers. Forced to make difficult choices, Fin and his friends face fire and ice as they seek to discover what the evil shadow that lurks under Ravenswood House is. But there are Dragons outside intent on taking over the world. Should the Guardians fail, then the world will enter into a new Ice Age that nobody will survive.