I haven't read this book yet, just found it while browsing on Amazon: Ghosts, UFOs, and the Blessed Virgin Mary,by Gordon Sironen from 2006. It seems to be written with a Christian perspetive; this is the blurb from amazon.com:
Satan is unbound for a "little season". Fulfilled Bible prophecy and scientific data agree. Our physical world has merged with the spiritual realm. Arrogant man with technology, unwittingly opened the electro-magnetic gate to the supernatural.