Oh. That must have been quite a shock to find out. But if her magic was a healing sort I'd imagine it to be pretty obvious that she wasn't like the Witches you'd faced so far... though a person can have dangerous, destructive powers and still be perfectly good.

Unfortunately, I probably can't help you much. The magic of my world and the magic of yours probably don't have much in common aside from the name. I have a firm grounding in the theory and use of my world's, but I know nothing about yours.