About the book: 2017 / Continuation of the adventures of Otto Prochazka, a submarine officer of the Austro-Hungarian Imperial Navy during the First World War. After a long return from China, Prochazka is assigned to command an outdated submarine. Ahead lies a series of tragic and funny, incredible tasks, where everything will happen: torpedo attacks, battles with airplanes and airships, sabotage missions. In addition to adventures, the reader will find here a surprisingly breathtaking panorama of Austria-Hungary, a unique state with a unique destiny, where the author organically included his hero.