She retired. Not in glory. Not in shame. In paralysis . The Golden Guardian became a recluse, hiding in a cottage where no one needed saving. Because saving anyone meant losing someone else. And she could no longer carry that math.
If you are looking for a literary work about a "heroine's fall" in a different context, there are novels such as "The Kinship of Secrets" or "The Hole" that explore the fall of professional women due to tragedy, but "Wondra" specifically identifies with the superhero genre. "Wondra #1" Trailer Wondra Fall Of A Heroine