A haunted house?

okay my camp counseler was telling scary stories that were or were not real but he told a real on okay it was in this house he went inside bc his boss told him to get something he went inside when he look into a foggy mirror he saw a person and then he felt like something touched him and burned him he has a burn and i saw it but is it true?? the house was a historical site built around the 1800s so tell me is this site eerie or what??