Ghosts, phantoms, specters, poltergeists, and all other sorts of incorporeal beings exist out there in the world. And if you're not afraid of them, then you don't have to call anyone. Though ringing up Grizelda might be handy, as she's got Grizelda's Guide to Ghost Hunting, a new RPG supplement up on Kickstarter now.
From the campaign:
The campaign's up and over its funding goal with 29 days left to go.