i didnt kill her and i did coconas quest until the point where I need 20 Gold coins.I also never saw the crimson slayer or had a dialog with her. Could you tell me the location where i can start her questline?I wouldn't know. I usually kill the beasts. But it seems plausible. And don't give up on your effort. Having a child is really rewarding.
You have already found her. You just need to progress the story. And by story I mean play the game and don't kill cute necromancers.