How do you get Hercules out of his spot poptropica?

After Athena helps you, you go to the museum and get the starfish off Poseidon's statue. You go to his temple in the grove, enter it and go on the beach. You will see a tall woman with blond hair. Talk to her, and she will give you a mirror. Go to Hercules and tell him that you have the mirror. He will come with you.