Greenmantle

Hannay and his friend Sandy convalescing from wounds received at the Battle of Loos. Hannay is summoned to the Foreign Office by Sir Walter Bullivant, a senior intelligence man, whom Hannay met and assisted in The Thirty-Nine Steps. Bullivant gives Hannay an outline of the political situation in the Middle East, and hints that the Germans and their Turkish allies are plotting to cause a great uprising throughout the Muslim world, that will throw the whole of the Middle East, India and North Africa into turmoil; Bullivant proposes that Hannay takes on the task of investigating rumours. The only clue he is given is a slip of paper left by a spy, Bullivant's own son, recently killed in the region, bearing the words Kasredin, cancer and v.I.