"Under Fire" by Charles King is a novel written in the late 19th century. The narrative centers around Captain Wilbur Cranston, a soldier who is preparing to return to the frontier after a leave of absence at home, where he was reunited with his family and old friends. The story explores themes of military duty, family ties, and the contrast between civilized life and the harsh realities of army life on the American frontier. The opening of the book sets the scene with Captain Cranston's bittersweet departure from a bustling Western city, filled with fond memories of his time spent with his charming wife and their two energetic boys. As the narrative unfolds, Cranston's internal conflicts about his duty and his family's reactions to his departure become evident. The introduction of characters such as Mrs. Barnard, who seeks Cranston's assistance regarding her troubled son, hints at the wider social dynamics and personal struggles that will intersect with military life. The initial chapters vividly depict the disconnection between the glamorous life left behind and the challenging world awaiting him on the frontier, setting the stage for the unfolding drama as they grapple with personal and societal challenges amidst the backdrop of impending military conflict. (This is an automatically generated summary.)