Tall, handsome, charming Col. Richard Meinertzhagen (1878-1967) was an acclaimed British war hero, a secret agent, and a dean of international ornithology. His exploits inspired three biographies, movies have been based on his life, and a square in Jerusalem is dedicated to his memory. Meinertzhagen was trusted by Winston Churchill, David Lloyd George, Chaim Weizmann, David Ben Gurion, T. E. Lawrence, Elspeth Huxley, and a great many others. He bamboozled them all. Meinertzhagen was a fraud. Many of the adventures recorded in his celebrated diaries were imaginary, including a meeting with...