The Wide Wide Sea by Hampton Sides (Author)

From the author of Blood River: "A splendid book, part memoir, part history," about the teenager who killed Archduke Ferdinand and sparked WWI (Norman Stone, author of World War One).
 
Sarajevo, 1914.  On a June morning, nineteen-year-old Gavrilo Princip drew a pistol from his pocket and fired the first shot of the First World War, killing the heir to the Austro-Hungarian Empire, Archduke Franz Ferdinand. Princip then launched a series of events that would transform the world forever.