Sometimes an author lucks into a great story. For a mystery writer, a real live mystery is a great find. But when you have a long standing mystery that appears to be solved, but it turns into yet another mystery, then you have the makings of a great story. And when the mystery involves a great literary character such as Sherlock Holmes, then it’s calling out for a novel. Graham Moore took a real mystery and was able to turn it into The Sherlockian