I managed to get all the way down to the girl in the cage without the Ethel fight triggering - released Maryana and now I can't even speak with her.
Do you remember what/where the fight trigger is?
I put the mask on to get through the illusion door - then unequipped before I got controlled then killed the dudes in the next room, then jumped my way down avoiding the acid clouds.
Any help appreciated!
I just ran into this exact issue. I was able to rescue Mayrina without encountering Aunty Ethel and Mayrina doesn't say anything after being rescued.