The Devil and Sherlock Holmes by David Grann

David Grann is a staff writer at The New Yorker and author of the #1 New York Times bestseller The Lost City of Z, which has been translated into more than twenty-five languages and received the Indies Choice award for the best nonfiction book of 2009. He is a recipient of the George Polk Award for magazine reporting, and has written for the New York Times Magazine, the Atlantic, the Washington Post, the Wall Street Journal, and the New Republic.