The Sea-girt Fortress: A Story of Heligoland

"The Sea-girt Fortress: A Story of Heligoland" by Percy F. Westerman is an adventure story that throws two young sailors, Sub-Lieutenant Jack Hamerton and his American friend Oswald Detroit, into a whirlwind of trouble when their yacht cruise to Kiel goes awry. Sailing on the "Diomeda", they mistakenly wander into restricted waters near Heligoland and are promptly arrested by German authorities, suspected of being spies, after a daring rescue. The story starts with the pair sailing and quickly escalates as they find themselves ensnared in a dangerous international situation, with the threat of naval warfare looming.