An article by the book's author, Evert Kleynhans, a South African, which promises much even if many of the official records have disappeared in South Africa. A passage that explains: The author ends with: Link:A return to the archives sheds light on German spies in South Africa during WWII Google indicates it should be UK bookshops and Amazon UK has one review: https://www.amazon.co.uk/Hitlers-South-African-Spies-Intelligence/dp/1776191161