Each December as the temperatures fall a frost fair takes place at the command of Queen Frostiana. For the community of little mice it is a time of great excitement and fun. But one year a magical little mouse called Mistletoe-Merry becomes separated from her family due to the mayhem caused by the Spirit of Winter Mischief.She befriends young Henry and the two set off on a series of daring adventures to try and find her family. Can they find them in time before the ice melts? Will a thrilling rescue attempt of a former enemy put all their lives in danger?A heart-warming tale to delight children with magic friendship and forgiveness in the coldest time of the year.