Sometimes you gotta deal with a devil in a blue dress and then who you gonna call? The Ghostbusters? Maybe. What you need is either a exorcist or a demonologist - preferable both. Today I put out a new Ritual Path Magic Style - the Demonologist along with a couple of new spells and a fully stated style. Not every one can be a spookhunter, but those that can are some hard men and women. http://www.ravensnpennies.com/2015/03/gurps-101-magical-styles-demonology.html#.VRSKfPnF_Cs