Publication: JB Lippencott Company, 1936, Philadelphia
First edition. Signed by the author. Fine in dust jacket. SIS agent Robert Thornton is asked to conduct a discreet in-house investigation of the German desk chief, David Fisher, who has disappeared and may have defected to the Russians. Fisher's disappearance is linked to the kidnapping of a young Soviet woman with psychic abilities.
Inventory Number: 36704