Hero risks his life to rescue the Oracle of Gaia from the Cyclops... she's the only person who can answer questions about his mysterious past. What she reveals is shocking, and changes Hero's life forever. In Athens, the siege­torn city is mired in political turmoil and someone inside the royal court is planning a coup, starting with killing King Aegeus.

Hero, Oracle and the genius inventor Daedalus form an unlikely alliance to find Hero's birthright - the Ring of the Magi. Meanwhile, Queen Medea finds out that Hero is the King's illegitimate firstborn son and she dispatches ruthless warrior priests to track him down and bring him to Athens.

Hero, Oracle and Daedalus narrowly escape capture and dismemberment by the warrior priests as they make their way to the forest of Troezen in search of the ring. In Athens, Medea agrees to take part in a tribute to Apollo, unaware that she's walking into a trap that could cost the Queen her life.

Hero, Oracle and Daedalus are captured by the Minoan troops and brought before King Minos and his daughter, Ariadne who subject them to sadistic torture. As life in Athens grows more dire, Medea arranges for a Dorian mercenary to go on a mission: sneak into the Minoan camp and against all odds, kidnap Hero.

Hero slips way into Athens to confront his father the King, only to be arrested and turned over to Prince Lykos. Once Lykos discovers Hero's identity, he realizes that his place in the court, and in his father's heart, is threatened. Back at the Minoan camp, Daedalus unveils his plans for the ultimate war machine that will bring Athens to its knees.

Medea and Aegeus try to convince Hero of the importance of solving the riddle of the Lexicon with the hope that he'll use his power to save Athens. Hero is not easily persuaded and must decide whether the Lexicon is a gift or a curse that he should rid himself of forever.