One of the first spy novels ever written, The Riddle of the Sands had an enormous impact upon its publication in 1903. Author Erskine Childers-a Boer War veteran and expert yachtsman-crafted a riveting tale of two men who sail close to the German coast and observe secret preparations for an invasion of England. The novel sparked intense concern over British preparedness for war, and one critic accused Childers of almost single-handedly plunging Europe into a conflagration.