sentences:  Hades' palace contains the remains of his wife, Persephone, whom Kratos killed in "".The Underworld is also home to statues of the three Judges of the Underworld, who hold the Chain of Balance connecting the Underworld to Olympus.Tartarus is the prison of the dead where the Titan Cronos was banished after Kratos retrieved Pandora's Box from Pandora's Temple in 2005's "God of War".