Here is a pdf scan I found of the book, "Our Haunted Planet" by John A. Keel. I did not make the title a hyperlink because I don't want whoever uploaded this to see where people are getting it from. I found it using a pdf search on Google.
It is an amazing book. And no, it doesn't have anything to do with ghosts. It's a book of anomalies in the vein of Charles Fort. If you have never heard of John Keel or Charles Fort, go Wikipedia them.
John Keel is most famous for his book, The Mothman Prophecies, which was made into a movie of the same name almost 20 years later.
Here is a review of Our Haunted Planet from UFO Digest, which sounds like it's from the back cover of one of the editions of the book. Not the edition that I'm posting.
Since the beginning of recorded time, man and his world have been plagued by unknown forces and beings, baffled by archaeological phenomena, and haunted by prophecies that often came true.
In the classic Our Haunted Planet, John Keel brings into chilling focus strange truths about the earth and its mysterious inhabitants. It is in this unseen prehuman race that guides us and miseads us, uses us for its own entertaimment, and controls our every action.
Here is evidence of:
• Advanced civilzations existing thousands of years before the cave man
• The strange Men in Black
• People who vanish and reappear within hours in another part of the world
• Angels and demigods who appear and make startling predictions that never
come true
John Keel is a researcher into strange phenomena and the author of many books on the unexplained. A world traveler, he has visited exotic locations from Tibet to West Virginia. He has lived in California, France, Egypt, Iraq, and anywhere his Fortean investigations have carried him. He has a bimonthly column in Fate magazine. He currently lives in New York City.
Anyway, here is the link:
http://www.chemtrails911.com/books/keel__john_a._-_our_haunted_planet__1975_.pdf
As I said, this is a scan of an early edition (1975) of the book, includes images of the front and back cover, and is not searchable. A searchable text version of this 1975 edition can be found on the preterhuman.net site, but it contains many typos because of the way they converted the book into text.
http://www.preterhuman.net/texts/alien.ufo/Keel,%20John%20-%20Our%20Haunted%20Planet.pdf