1915. German guns are on their way to Ireland. The British government faces its worst nightmare: insurrection at home while it struggles with bloody stalemate on the Western Front. A British spy, Sebastian Wolff of the new Secret Service Bureau, is given the task of hunting down its enemies: one a traitor reviled by the society that honoured him as a national hero; the other a German American doctor who, instead of healing the sick, is developing a terrifying new weapon that he will use in the country of his birth.Wolff’s mission will take him undercover into ...