Basti and his friends are vacationing in the picturesque town of Hallstatt. But the idyllic setting quickly reveals its dark side: on their very first evening, the children are visited by three evil fairies who place a mysterious curse on Johann: “If three drops of water touch your skin, you shall be doomed to the water forever.“ What could their cryptic words mean? Determined to save Johann from a terrible fate, the children embark on a perilous adventure, uncovering countless legendary secrets along the way...