Thank you so much, my directional skills are absolute garbage so i still don’t know where this is 😭. Is it in the library place where nettie takes you?

Her chest is at the back of the room behind her and the other druids, a side path in the rocks

I got the key on her dead body I think, but also it bugged for me and the quest finished. I've had about 4 quests do weird things.

Where do you actually find kagha’s key and chest? I found her bugged out letter in the bog but not the key and chest

Question (possible spoiler)