I will give you the head of Medusa as a gift since you talk about it so much.
We will help you!
We’ll tell you where the nymphs are
Call to Adventure: Perseus wants to give Medusa's head to Polydectes as a wedding gift since he didn't have a gift and Polydectes talked about it so much to Perseus.
Aid: Hermes and Athena joins Perseus to help him at some point in the journey and offers intelligence and resources like when Hermes guided Perseus to the nymphs of the North.
Tests and Supreme Ordeal: The tests are stealing the third eye from the gray women to get directions to the nymphs of North and receive gifts from them, the sandal, cap, and wallet. The supreme ordeal is to kill Medusa and give her head as a gift to Polydectes.
Reward and Journey home- Perseus's reward is Medusa's head and he had a hand in marriage to a princess when he saved her from a serpent.
Restoring the World- Perseus used Medusa's head to turn Polydectes and his mean to stone to save his mother and make Dictys king.