Readers and critics of Edward Thomas' poetry have always faced an intriguing and apparently insoluble question: why did a man, aged, 37, who didn't have to go to war - and who wasn't moved by patriotism or even a belief that wars solved anything - volunteer? And then why did he take the even riskier option of signing up for the Western Front? By close analysis of Edward Thomas' poems ... I believe I have the answer: a Secret Code within his poems,...