sentences:  After finding the three Judges of the Underworld and the Chain of Balance, Kratos briefly meets the spirit of Pandora, whom he briefly mistakes for his dead daughter, Calliope.Following an encounter with the Olympian blacksmith Hephaestus and recovering the Blade of Olympus, he kills Hades and releases the souls of the Underworld.Kratos considers searching for Calliope's soul, but Athena reminds him of his quest, and he leaves the Underworld.