Olympus: War

Chapter 5: The quest of the Four Demigods

Zeus gave Hercules a red and a blue rock.
Then Hercules smashed the red rock. Then all a sudden Hercules, Perseus, Theseus and Bellerophon disappeared from Olympus and reappeared in the Underworld.
Then Hercules saw the Kingdom of Hades and told Perseus, Theseus and Bellerophon to follow him. The Only Problem was that Hercules dis not know how to get inside The Kingdom and then in the palace without getting seen by the dead.
Then Hercules stopped and asked Theseus and Bellerophon:" Hey you two were dead. You...