(from the back of the book) Even in the midst of Aventurien there are regions where people can disappear without a trace - and this seems to have happened to a young wizard, who started a quest to unravel the mysteries of the red sickle mountains. On behalf of her former teacher the the heroes start a rescue expedition, in which they encounter not only miners and goblins, mountain streams and glaciers, but also centuries-old tracks that even today can bring many thousand ducats: the secret of Fairy wings.