Ghosts and Ghouls

Mickelsson's Ghosts

Boo! Ghosts in the School (Abracadabra! 2)

Ghosts, Ghouls and Phantoms of London (Of London Series)

GHOSTS OF WAR : GHOSTS OF WAR

Inugami Clan: A Gothic Tale of Murder from Japan's Master of Crime

The World's Most Famous Ghosts

Caution: Aliens at Work (Ghosts of Fear Street #32)

Gods, Men and Ghosts: The Best Supernatural Fiction of Lord Dunsany

Missing Pieces: How to Investigate Ghosts, Ufos, Psychics, & Other Mysteries