No, Medusa is from Greek mythology.
The simple answer is that you must read the story first because it will tell you what happens in the end. That is what a story is for.
No
He died at the end
Medusa is the monster slain by Perseus, the oldest of the Greek heroes.
the Greeks
At the end of the story Jonas and Gabe reach elsewhere
She died
outcome
Medusa was not a hero- her actions were motivated by the fact that she was a monster.
The story is about him and his mother, he is trying to get the gorgan's head, medusa.
If you're talking about Perseus and the Gorgon's head, than it's Perseus. If you're talking about the story about who Medusa got her snake hair, then it's just Poseidon, Medusa and Athena.