It was left to Jill Paton Walsh to extend Wimsey's career through and beyond the Second World War. In the continuations "Thrones, Dominations", "A Presumption of Death", "The Attenbury Emeralds", and "The Late Scholar", Harriet lives with the children at Talboys, Wimsey and Bunter have returned successfully from their secret mission in 1940, and his nephew Lord St. George is killed while serving as an RAF pilot in the Battle of Britain. Consequently, when Wimsey's brother dies of a heart attack in 1951 during a fire in Bredon Hall at Duke's Denver, Wimsey becomes — very reluctantly — the Duke of Denver. Their Graces are then drawn into a mystery at a fictional Oxford college.