"A Trooper Galahad" by Charles King is a novel written in the late 19th century. The story takes place in the post-Civil War military context, primarily focusing on the experiences of its main character, Captain Edgar Lawrence, who faces a tumultuous turn of fate as he is unjustly discharged from the army. The narrative intricately explores themes of honor, despair, and the stark realities of military life while introducing a cast of characters who are equally affected by the changing dynamics of the army and their own personal struggles. The opening of the novel introduces Colonel Frazier and Major Brooks, who are reflecting on the challenges of army life in Texas and the plight of Captain Lawrence, who has become a casualty of the military's reorganization. Lawrence's life has unraveled due to a series of unfortunate events, including his wrongful court-martial and his wife’s subsequent death. As the colonel and major discuss the impact of Lawrence's troubles on his family, we learn about the deep camaraderie and loyalty among the soldiers, which is contrasted with the bureaucratic indifference of the military establishment. Soon, Lawrence's journey to Washington to seek redress brings him face to face with hope and despair, setting the stage for the unfolding drama. (This is an automatically generated summary.)