Rent Halfhyde to the Narrows, #4: The Halfhyde Adventures

Lieutenant St Vincent Halfhyde finds his first command, the little torpedo-boat Vendetta, assigned to a flotilla bound for the Dardanelles to rescue a British merchant ship from the Russians. Once there, he faces a dilemma: obey the questionable orders of his bombastic superior officer Watkiss or follow his own inclinations and take the consequences. But when his arch-enemy Admiral Prince Gorsinski threatens him with prison in Siberia, Halfhyde knows he must foil Gorsinski once again—or die trying.