Continuation of the trilogy about Merlin. King Arthur, a knight without fear or reproach, rules the country of the Britons. Far from the royal palaces, in a simple fishing hut, Mordred grows up - a boy who is destined to become the death of Arthur. Over time, Mordred reveals the secret of his birth. But will he be able to deceive fate and thereby protect the king he revered from death? The answer is known only to the gods and soothsayers who can see the future, but, alas, are unable to change it.