SHORTLISTED FOR THE ALCS GOLD DAGGER FOR NON-FICTION''METICULOUSLY RESEARCHED ... A GLORIOUSLY ENGAGING ROMP'' JANICE HALLETT, THE SUNDAY TIMES''IMMERSIVE AND COMPELLING'' DAVID KYNASTON''A PAGE-TURNER'' ROBERT LACEYA brilliant narrative investigation into the 1920s case that inspired Agatha Christie, Dorothy Sayers and Margery Allingham.On a bleak Tuesday morning in February 1921, 48-year-old Katharine Armstrong died in her bedroom on the first floor of an imposing Edwardian villa overlooking the rolling hills of the isolated borderlands between Wales and England.Within fifteen months of such a sad domestic tragedy, her husband, Herbert Rowse Armstrong, would be arrested, tried and hanged for poisoning her with arsenic, the only solicitor ever to be executed in England.Armstrong''s story was retold again and again, decade after decade, in a thousand newspaper articles across the world, and may have also inspired the new breed of popular detective writers seeking to create a cunning cr
