Patriot, traitor, general, spy: James Wilkinson was a consummate contradiction. Brilliant and precocious, at age twenty he was both the youngest general in the revolutionary Continental Army, and privy to the Conway cabal to oust Washington from command. He was Benedict Arnold's aide, but the first to reveal Arnold's treachery. By 38, he was the senior general in the United States army--and had turned traitor himself. Wilkinson's audacious career...