No, I have been to several supposedly haunted sites and never once seen any sort of supernatural phenomena. I appreciate that you didn’t think it was an illusion, but why did it scare you? Was there anything specific about the situation that made it seem threatening or worrying to you? If you thought it may have been a torch light, then I’m assuming the image was indistinct, so could it have been moonlight reflected off some windows, or some light source refracting through a mist? Is your memory of the event clear, or did it seem surreal and dream-like?