[Maggie watches this for a moment, amused, but figures she should step in. She once again has Bienfu do his thing as she grips the paper between her fingers, which is at that moment completely stiff, a sign of its activity. She strikes a quick pose, with Guardian in one hand over her chest, while she points at the ghost with her over hand, smirking a little.]

"Alright, listen here for a second, spirit. You're going to drop the key right now, OR I'LL GIVE YOU A SECOND DEATH!!! You hear me on that?"

[Yeah the paper is not exactly intimidating in and of itself, but the spiritual power the ghost can probably see coming from it is.]