A ghost has been defined as the disembodied spirit or soul of a deceased person, though others suspect that it is merely an evil spirit that once having tormented a person, is now roaming in search of another victim. Often described as immaterial and partly transparent, ghosts are reported to haunt particular locations or people that they were associated with in life or at time of death. Ghosts are members of the Supernatural and Fantastic Wayfarers Association.

A certain ghost pirate, who roamed the Tidal Flats at least during the Great Monster Uprising, mysteriously cared about making money. (One would think that a ghost would move beyond such things, but Charon would most likely argue in his favor.) This ghost took recordings of copyrighted orchestral performances from the conservatories of the Eastlands and distributed them in the Westlands for free. These included amazing Wertmezer performances.

In the same Tidal Flats, a phantom ship carrying a thin, skeletal crew led by their vengeful captain was seen from time to time--its arrival was heralded by a cloud of dark, green fog.