As a boy, he spied for Sherlock Holmes. As a man, he must save the Empire.

'Skilfully mixing real history with action sequences worthy of Lee Child, this is historical crime-writing at its best' John Williams, the Mail on Sunday on The Year of the Gun 1914. Sherlock Holmes has been murdered. Nobody knows who did it, but Wiggins, former Baker Street Irregular and Holmes' protégée, suspects a German spy. However, Europe is descending into the chaos of the First World War. Captain Kell of Military Intelligence has limited resources, and more pressing matters on his mind. Wiggins is on his own. Almost. He pursues Holmes' killer across the continent, but as...