To stop the army of Hades, Athena's Knights have unleashed forces beyond even their control. Hit by two cosmic blows of the forbidden Athena Exclamation, Sanctuary itself begins to crumble. But the battle has only just begun. In a desperate gambit, Seiya and his fellow Bronze Knights prepare to descend into the underworld and challenge Hades face to face. But Princess Sienna has a shocking plan of her own. To save the world from Hades, will she make the ultimate sacrifice? Or will she live to lead the Knights to a new level of power--the power of the legendary eighth sense?