The king's builder Radslav is killed and the investigation is taken up by Prince Slavomir and his Viking friend Erik
Prince Slavomir, a wealthy and fearless man with a keen judgement, who comes from the Mojmir family, searches with his Viking friend Erik for the murderers of the royal builder Radslav, the author of the fortifications of the largest Moravian cities and the Mikulčice Basilica. The investigation was entrusted to King Rastislav himself, whom Radslav had raised. Where will the clues lead in solving the builder's murder? Investigators learn about the unknown circumstances of Radslav's life and get on the trail of a dangerous conspiracy.
