MURDER IN THE LIBRARY.

It’s 1957. Explorer Sir Arthur Dingwall-Main has been murdered. He died in his library after eating a cake laced with cyanide. There are five suspects: his faithless wife OLIVIA, her lover CLAUDE and fellow explorer ROLAND. Also in the frame are chauffeur HAROLD and housekeeper SANDRA. Sir Arthur was clutching six scraps of paper torn from an almanac of the flags of the world. Each piece of paper shows a different flag. On Saturday, Inspector Alan Morris cracked the case, telling PC Tommy Briggs, ‘when it comes to murder, the devil is in the detail. Do I have to spell it out for you?’ When Briggs continued to look baffled, Morris reminded him of some further clues at the crime scene (pictured in last Saturday’s Weekend magazine and at www.dailymail.co.uk/mystery). ‘If you looked closely you will have seen Sir Arthur’s right forefinger was pointing towards a model from his travels of a famous building in Washington DC; he had an unexpected book by Karl Marx on his desk; and his favourite expression was “Capital!”. Using these clues I worked out that we should be thinking of the major cities of each of the countries represented by the six flags. Scramble their initial letters to reveal the name of the killer.’