Corpsewalker primarily plies their trade in Liarus, though they appears to have contacts in other cities throughout the continent. He/She/It is a specialist in curses (particularly blood curses) and has developed some magical ritual or technique that allows the possession of bodies far from their mortal body.
Deeply creepy in conversation, Corpsewalker appears to have some sort of twisted compassion for the dead, though it's not really clear whether this is the result of an unusual moral perspective or straight up insanity.