She gave him a puzzled look now. She was pretty sure that's not what her mother had planned, nor how immortality really worked. Memories were memories - they could hurt, yes, but in the end, it was all in her head. Not that having anything inside her head that wasn't her was particularly reassuring, but that is likely what it intended

"You are fear and shadow," she said hesitantly. Whatever this creature was, he embodied those traits. Her mother was terrifying, and wreathed in darkness, but it came from something else, something old. Well. something older. "It is from you that courage and light are born."