The three eyes of evil; and, Earth's last fortress two science fiction novels
Van Vogt, A. E.(Alfred Elton),1912-2000.
Van Vogt, A. E.(Alfred Elton),1912-2000.Earth's last fortress.
London Sidgwick and Jackson
1973
'The three eyes of evil' originally published as 'Siege of the unseen'. New York: Ace Books, 1959
'Earth's last fortress' originally published, New York: Ace Books, 1970