Everyone knew the witch who lived in the forest. She lived in the cabin inherited from the previous witch.
(Some claimed she was a sorcerer, that no one that young could possibly be a witch, but she held the title with pride.)
Rumours about her past and powers followed her wherever she walked, which she ignored, saying she had better things to do than listen to a bunch of stories.
She was good at what she did, and fair, though not necessarily kind, and the payment for her help was a favour which could be called in at any time.