Ah, well, the 'lost soul' I mentioned wouldn't be a real ghost, but more a plot device that explains why random things occur.  His only function in the story would be to add more horror elements. He doesn't feature a major role and would only make the occasional appearance to scare the shit out of us. ;D<br/><br/>If he is included then the total would be 4 ghosts, 3 for the plot and 1 for the atmosphere. I think that's okay?<br/><br/>You don't even have to portray him yourself, it could be the player characters that mention seeing/hearing/feeling him. If nobody likes him then it's fine by me and we can do without him, but it'd give you options of having stuff move around the house and antagonise the lives of our family with something explainable. (Even if the family doesn't know it's this ghost doing those things.)