It's Christmas in Aberystwyth and a man wearing a red-and-white robe is found brutally murdered in a Chinatown alley.A single word is scrawled in his blood on the pavement: 'Hoffmann'.But who is Hoffmann? This time, Aberystwyth's celebrated crime-fighter, Louie Knight, finds himself caught up in a brilliant pastiche of a cold-war spy thriller.From Patagonia to Aberystwyth, Louie trails a legendary stolen document said to contain an astonishing revelation about the ultimate fate of Butch Cassidy and the Sundance Kid, but he's not the only one who wants it.A bewildering array of silver-haired spies has descended on Aberystwyth, all lured out of retirement by one tantalising rumour: Hoffmann has come in from the Cold.Louie Knight, who still hasn't wrapped up his presents, just wishes he could have waited until after the holiday.