Simon was getting a little frustrated with this house by the time the shriek went up, between hallucinations to tempt them in and the great plethora of locked doors, he was currently straddling the line between being extremely suspicious of the nature of these events, and actually sort of approaching nervous. Never the less, at the sound of someone screaming, he did what was likely expected of him and hurried into the room.
While the girl whom he'd met outside tried to reason with the woman presently brandishing a dagger at them, Simon scanned his gaze over to the other occupants of the room, brightening visibly at the sight of John, before wilting ever so slightly as he realised that John was standing next to a familiar, and vaguely psychotic vampire hunter. Sighing inwardly, he raised a hand to give them a slight wave, before glancing back at the knife wielding lady in front of them all.