OAHSPE : A NEW BIBLE IN THE WORDS OF JEHOVIH AND HIS ANGEL EMBASSADORS ; A SACRED HISTORY OF THE DOMINIONS OF THE HIGHER AND LOWER HEAVENS ON THE EARTH FOR THE PAST TWENTY-FOUR THOUSAND YEARS BY JOHN BALLOU NEWBROUGH (1842)
THE HIDDEN WAY ACROSS THE THRESHOLD: OR THE MYSTERY WHICH HATH BEEN HIDDEN FOR AGES AND FROM GENERATIONS BY J. C. STREET (1887)
THE SHAMEFUL YEARS; THIRTY YEARS OF SOVIET ESPIONAGE IN THE UNITED STATES BY UNITED STATES. CONGRESS. HOUSE. COMMITTEE ON UN-AMERICAN ACTIVITIES (1951)
THE INVISIBLE COLLEGE: WHAT A GROUP OF SCIENTISTS HAS DISCOVERED ABOUT UFO INFLUENCE ON THE HUMAN RACE BY JACQUES F. VALLÉE (1975)
INVISIBLE RESIDENTS: A DISQUISITION UPON CERTAIN MATTERS MARITIME, AND THE POSSIBILITY OF INTELLIGENT LIFE UNDER THE WATERS OF THIS EARTH BY IVAN T. SANDERSON (1971)
EXTINCT MONSTERS AND CREATURES OF OTHER DAYS: A POPULAR ACCOUNT OF SOME OF THE LARGER FORMS OF ANCIENT ANIMAL LIFE BY HENRY NEVILLE HUTCHINSON (1910)
CONSPIRACY AGAINST EUROPE : THE PARIS AGREEMENTS – A WAR PLOT; BY GERMANY (EAST). AUSSCHUSS FÜR DEUTSCHE EINHEIT (1955)
THE NIGHT OF THE GODS; AN INQUIRY INTO COSMIC AND COSMOGONIC MYTHOLOGY AND SYMBOLISM BY JOHN O’NEILL (1893)
SUBTERRANEAN WORLDS: 100,000 YEARS OF DRAGONS, DWARFS, THE DEAD, LOST RACES AND UFOS FROM INSIDE THE EARTH BY WALTER KAFTON-MINKEL (1989)
THE DEMONISM OF THE AGES, SPIRIT OBSESSIONS SO COMMON IN SPIRITISM, ORIENTAL AND OCCIDENTAL OCCULTISM BY J. M. PEEBLES (1904)
SUPERNATURAL RELIGION : AN INQUIRY INTO THE REALITY OF DIVINE REVELATION BY WALTER RICHARD CASSELS (1874)