Lukas wants only two things: to rebuild his castle home in time to make it through the coming winter and to reconnect with the sister who was stolen from him in a plot against his family. But then an astrologer appears with foreboding news: his old adversary, Inquisitor Waldemar von SchÞonborn, has stolen three royal artifacts, which are required to coronate a new German emperor. With these valuable objects, the sword, the crown, and the scepter, he could blackmail the empire. The treasures are currently hidden in three different places in the old imperial city of Prague.