The Wolf's Weakness

I prepared myself as I entered Vendetta's lair.
No matter what she tells you, no matter how horribly she tortures you, you must never give in to her,
I thought to myself.
"Well, well, well, what have we here? The infamous Edgar Conan Parker. The king of the wolves. The monster who had a heart. What brings you to my humble home?" she asked with a devious grin.
"I've come here to warn you to stop terrorizing everyone. Maybe we can make a deal?" I said calmly.
"And what would you do if I were to continue?" she asked slyly.
"Then I will personally see to it that your reign of injustice and slaughter is ended..................... Permanently."
"Oh I'm just petrified! I'm no match for someone as fearsome and strong as you!" she said sarcastically. Then she broke out into laughter, or what some might call laughter anyway. It sounded much too cruel and diabolical to be any sign of joy.
"But you're really not so frightening, even you have a weakness. I'll make a deal with you. You know your beloved Rachelle?"
"What about her? She's been dead for ages," I said nervously.
What she said next filled me with utter shock and amazement.
"What if I told you we could bring her back, together?"