u cant intil Hercules belives u
herculese opens it after Zeus takes all your items
throughout the game after zeus takes your items athena will talk to you and tell you to speak with hercules and he wil finally help you and he will move the rock from hades throne.
You give them to Hercule's and get him to move the rock in front of Hades throne room. Hope it help :)
herculees does that
If hes with you and you click on it he will stomp on it for you.
You get Hercules to do it. But he won't until you have returned the 5 sacred items to the Tree of Immortality. Then Hercules will agree to help you. The notes on the items say "whoever wields the five sacred items will rule all of Poptropica" and that's what Zeus wants. Athena tells you that Hercules will help you stop him. You will need the Touchscreen Mirror from Aphrodite's test (Poseidon's realm) to take Hercules to the Poseidon and Hades throne rooms.
You must first get the mirror form Aphrodite and you must convince Hercules to go with you then use the mirror to get to the underworld then he will the rock away
His throne room is in the Temple to Poseidon, at the bottom of the lake. But you can only reach it when you have Hercules to move the boulder blocking the entrance. If you accidentally enter the Throne Room by slipping past the rock, you may not be able to get out again unless you have the Transporter Mirror.
Only Hercules can move the rock. Before he will help you, you have to collect the 5 sacred items and return them to Athena at the Tree of Immortality.
When you finish going to Hades' throne room ,use your mirror from Aphrodite and click Hades' symbol.Then,click on Hercules.Hercules will crunch the rock blocking Poseidon's throne room.Then you can go into his throne room.
You don't need to get the 9 drachmas; he lowers the price and you have to do the other challenges first you must go to Olympus village where you must speak to Athena who will get Hercules to help you move the rock in front of Hades' throne room. :)
you have to get the pomegranates