It's hard to keep a million-man invasion a secret. Very hard. But the Allies looked like they were going to pull it off. That was until D-Day codewords began appearing in cryptic crosswords in the national press, all set by one Carl Bookman. You'd assume Bookman was a German spy, wouldn't you? But would you think the same if Carl Bookman was your grandfather? 'Crossword Ends in Violence (5)' is the smart, witty and gripping thriller by James Cary, writer of the hit BBC3 comedy 'Bluestone 42'.