This may be considered hidden history, or maybe hidden in plain site. Fascinating and unusual story of a German family in the 1930s and 40s who ended up spying for the Japanese before the attack on Pearl Harbor. The Kuehn family was in Germany, having no luck getting into good positions with the up and coming Nazis. Except one daughter, Rose, who was having an affair with Goebbels. Rose was adopted and turned out to be half Jewish. When this was found out it was arranged that the family would relocate to Hawaii and spy on the US military there for the Japanese. The Japanese paid them very well and they used the income to live large and bought real estate and entertained lavishly. In particular entertaining members of the American military, in order to get intel to pass on to the Japanese. They traveled occasionally to Japan to meet with officials. This went on from the mid 1930s through the 1940s until some of the family was arrested and tried.
It is amazing how open Honolulu was for so long that the father could drive around Oahu and take photos of military installations to pass on to the Japanese. The book is written by the granddaughter of the main spy, whose father never talked of his childhood in Hawaii. She was only able to start to get info on the family activities after enough time passed and documents were made available in the 1970s and 1980s. Among the many fascinating things this book reveals is that because of this spy family the Germans knew that Pearl Harbor was going to be attacked right from the time it was being planned.
