Richard De Clare, Lord of Bunratty, wants the head of the Silver Stag on his castle walls. Four children are determined that this will not happen, for the stag is a magical creature. The mysterious lady in the tower, Dame Anna, has told Tuan, Cliar, Maude and Matthieu that despite their differences they must work together to save the stag.
But they are living in an Ireland full of war and danger and saving the stag is only the beginning of...