David Grann is staff writer at The New Yorker magazine and the author of the books “The Devil and Sherlock Holmes: Tales of Murder, Madness, and Obsession” and “The Lost City of Z: A Tale of Deadly Obsession in the Amazon.” His first book, “The Lost City of Z,” was a #1 New York Times bestseller and has been translated into more than twenty-five languages. Shortlisted for the Samuel Johnson Prize, the book was chosen as one of the best books of 2009 by the New York Times, the Washington Post, Entertainment Weekly, Bloomberg, Publishers Weekly, and the Christian Science Monitor. The book is currently being developed into a movie by Brad Pitt’s Plan B production company.