Nina and the secret of the waterfall

Nina, Anna and Tim are finally together and the holidays can begin. Together they follow the trail of the ghostly white horse and the journey leads them to the mysterious caves of a waterfall that hides many secrets. Where do the hidden cave tunnels lead? And will the trio be able to unravel the mystery of ancient climbing expeditions? Get your flashlights, a map and a good bit of courage ready, the summer adventure in the rocks is just beginning!