The Book Doctors met Bruce Holsinger at the Tucson Book Festival (by the way, if you read or write, do yourself a favor and put the Tucson Book Festival on your Bucket List) and when he told us about his book, The Invention of Fire, we just had to pick his brain about writing historical fiction, non-fiction, teaching fiction, plagues, witches, wars and guns. Bruce Holsinger is an award-winning fiction writer, critic, and literary scholar who teaches at the University of Virginia.