"The Mystery Ship: A Story of the 'Q' Ships During the Great War" by Percy F. Westerman is a historical novel written in the early 20th century. The story follows the experiences of sub-lieutenants Kenneth Meredith and Jock McIntosh, who serve aboard a British motor launch during World War I, particularly focusing on the dire encounters of naval warfare involving Q ships and submarines. The book delves into the challenges and dangers faced by naval officers as they patrol the foggy Northern Seas while seeking out enemy vessels such as U-boats. The opening of the novel sets the scene aboard H.M. Motor Launch 1071, where sub-lieutenant Kenneth Meredith is interrupted while writing a letter home. Shortly after, he interacts with his fellow officer, McIntosh, and they discuss the whereabouts of their absent colleague, Wakefield. As the two prepare for a night patrol amidst thickening fog, they express their frustrations and hopes of encountering enemy submarines, revealing their personalities and camaraderie. The narrative portrays the realities of maritime patrol work during wartime, emphasizing the blend of uncertainty and duty that governs their lives. This engaging beginning lays the groundwork for a tense exploration of naval engagements and the intricacies of wartime camaraderie. (This is an automatically generated summary.)