"Truth is stranger than fiction," or so the saying goes. Or, in some cases, the truth is the basis for some incredible fiction. There's nothing better (or more mind-blowing) than reading an incredible book, not wanting it to end, and then finding out it was based on something that really happened.
The Witching Hour ~ Anne Rice. I never got into her other books but this series blew me away!! In this engrossing and hypnotic tale of witchcraft and the occult spanning four centuries, we meet a great dynasty of witches--a family given to poetry and incest, to murder and philosophy, a family that over the ages is haunted by a powerful, dangerous and seductive being.