Second Chance for Revenge: The Reborn Luna.
"What do you want, Ophelia? I'm here now. Your beef is with me. Let my parents go."
"No. I won't. There's no reason for me to. And I never promised to release them once you came here." She smirked. "You see, do you know what material the blade of this dagger is made from?"
Light bounced off the silver metal as she moved it.
"Silver," I answered without thinking. "That's silver."
"Good. Now, wounds from silver are quite fatal to werewolves, it impedes healing factor, and it even . . ." A sizzling sound emanated from it as she pressed it against my father's skin again. "Burn."