Chapter 1. Things that go Bump in the Night (and Day)
Chapter 2. Anthropology and the Science of the Supernatural: Souls, Ancestors, Ghosts, and Spirits
Chapter 3. An Operational Classification of Spirits
Chapter 4. The World of Spirits
Chapter 5. Spirits and their Helpers
Chapter 6. Defense against the Dark
Chapter 7. Neurology, Physiology, and the Mind/Spirit Interface
Chapter 8. Conclusion.