Man, it has been way too long since I read anything about those stories. Very clever writing, Ryllharu. Well, at least I'm happy I guessed it, when I read your paragraphs with the bolded words, and I didn't actually need read the identity out aloud. A tiny victory for me, at least... Heh heh. Aye, you certainly seem to know your stuff.
Hmm... Maybe the fact that she liked to try to immobilize her enemies (with the chains) also refers nicely to Medusa.