Josephine Tey was a writer of detective stories during the classic era from the 1930s to the 1950s, when Margery Allingham, Agatha Christie, Edmund Crispin, Michael Innes and Dorothy Sayers were to the fore, when sleuths were gents, often displaying strong literary bents. Yet her most famous book, The Daughter of Time, published in 1951, is something of a sport, as much fact as fiction, as much to do with the fifteenth century as the 1950s. The Daughter of Time is Truth, according to the proverb on the title page, and the book is about who actually murdered the Princes in the Tower, the two male children of Edward IV. Josephine Tey had the brilliant idea of setting one of history’s great mysteries as a problem to be solved by her regular detective-hero, Alan Grant.