Andrew Williams is the author of the novels The Interrogator and To Kill a Tsar. The Interrogator was shortlisted for both the CWA Ellis Peters Historical Dagger and the CWA Ian Fleming Steel Dagger. To Kill a Tsar was also shortlisted for the CWA Ellis Peters Historical Dagger as well. He is also the author of two best-selling accounts of World War Two campaigns - The Battle of the Atlantic and D-Day to Berlin.