Boy Scouts in the North Sea; Or, The Mystery of a Sub

Four Boy Scouts. One mysterious package marked U-13. And a German submarine hunting them across the North Sea. It's 1916, and Ned Nestor and his friends have stumbled onto something far more dangerous than any badge test: a web of espionage connecting the battlefields of Belgium to the fog-shrouded waters of neutral Holland. When a soldier discovers the package during a train search, it vanishes before anyone can explain what it is or why men with guns will kill to get it back. Now the boys must trust their scouting skills and each other to stay one step ahead of a shadowy figure called Mackinder, who seems to know their every move before they make it. What begins as a wartime escape becomes a test of nerve, loyalty, and ingenuity against enemies who play by no rules. Ralphson, writing in the thick of the Great War, captures the breathless energy of early boys' adventure fiction where courage comes in small packages and the world is always on the verge of rescue or ruin.