The time had come again. Everything was ready for the departure to Wasandria. Sebastian and his sister Louise spent every summer with their mysterious grandmother on the lonely, overgrown island. But this year, his friend Frederick was allowed to join him for the first time. And so the time was ripe to get to the bottom of the mystery surrounding the mysterious star medallion. Where did it come from, what did it want, is it even the key to Wasandria's long-lost treasure? And who were all the strange figures that suddenly appeared in Sebastian's life? It was that time again. But this summer everything would be different.