Hopeful Monsters is a tour de force of intellect and eros - one in which Albert Einstein taunts a lecture hall full of Nazis and Ludwig Wittgenstein is an awkward guest at an English garden party. It is a love story in which a young English physicist and a German-Jewish anthropologist pursue each other across landscapes that range from Hitler's Germany to Los Alamos on the eve of the atomic age. It is also a pyrotechnically accomplished novel of ideas in which communism, psychoanalytic theory, uncertainty, and relativity attain visceral emotional force and help us understand the cataclysms of the twentieth century.