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In the powerful land of the Six Duchies lives Fitz, the illegitimate son of the Crown Prince. Someone is eager for his death, so that the boy will never be able to rule and take the throne. His grandfather, the monarch, saves him from death. Now Fitz is safe, living in the royal palace. But suddenly a mysterious old man named Chad appears in the boy's room. This meeting changes Fitz's life forever. He embarks on the path of an assassin - a cold-blooded spy-killer for whom death is a real craft. And the boy masterfully masters this science. Meanwhile, the Six Duchies suffer from raids by island pirates. Those who are captured by them lose their humanity and interest in life forever... To protect their land, Fitz and Chad embark on a dangerous fantasy journey.