Hitler's darkest secret;

Hitler's Darkest Secret by Richard Baxter - published in 1941 warning the country about what Hitler had in store for Britain. He makes mention of Hitler's darkest secret being the Grandson of a Jew a member of the Rothschilds family on the wrong side of the blanket. Later in the book he also warns Britain about the dangers of concentation camps. As well as information on the long arm of the Gestapo.