They Used Dark Forces by Wheatley, Dennis - 1969

London: Arrow Books. Very Good-. 1969. Reprint; Second Printing. Paperback. Mass Market PB . Some reading creases, some edge and shelf wear, some cover scuffing, paper edge toned. ; Second printing of second Arrow mass market edition with new cover design. Nice tight copy, no names or marks inside. Cover design and photographs uncredited. Heavy book and priced accordingly. ; The Gregory Sallust Series; Vol. 8; 512 pages; In June 1943, whilst on a mission to penetrate the secrets of Germany's V weapons, Gregory Sallust became unwillingly involved with a Jewish Black Magician. Sixteen months later they met again and decided to use occult forces in an attempt to destroy Hitler. .