From the publisher's page:
Beyond the veil of mortal sight lies a world of entities that do far more than just go bump in the night!
For every person alive today, a score or more have gone before him. Little wonder then that stories of ghosts date back to the earliest days of civilization. This sourcebook is a detailed guide to ghosts and other haunting spirits for the Ubiquity roleplaying system.
Pierce the veil betwixt the worlds of the living and the dead and you will find:
An overview of ghosts throughout history
Information on the creation and identification of specters
How to create haunted houses
34 ghostly powers, allowing you to customize haunting spirits
31 sample ghosts, from banshees to wraiths
13 unique apparitions
Two new occult tomes and one new ritual