Our protagonist has been prophesied to die should Charybdis, the Living Whirlpool, remain chained to the ocean floor. So, what is a human to do to release a monster that eats ships whole on a regular basis? Attract the attention of another monster, of course!
Ending to you, gender of our protagonist to you, but I ask that the following two monsters appear and meet:
Charybdis: The Living Whirlpool. A beautiful woman who spurned the advances of someone skilled in magic (although some tales say a god, and some say it was a jealous Circe). So, she was cursed to spend eternity at the bottom of the sea, a massive monster. The only way she could keep from starving was to constantly pull food into her mouth by drinking the ocean, and because she never learned she was massive, she is likely unaware that her primary sustenance has been entire sailing ships.
Dracena: Dragon by day, beautiful woman by night (in the original myth, she was seduced and slain by a hero in her vulnerable human form, but let's ignore that). During the day, she rampages, causing earthquakes with every footfall, eating villages in her path, and killing anything and everything that approaches. At night, she is the world's greatest sorceress, able to break any curse but her own. She isolates herself as much as she can before morning comes, so her dragon form causes as little damage as possible.
I'm good with just about anything, short of scat and watersports.
, Fantasy Characters: