"Dad" by "Albert Payson Terhune" is a historical novel written in the early 20th century. The narrative centers around James Brinton, a man burdened by his disgrace from the military due to alcoholism, as he grapples with his past failures and strives for redemption. The story unfolds against the backdrop of the Civil War, delving into themes of honor, familial duty, and the quest for personal identity. The opening of the book introduces key elements of the plot and sets the tone for Brinton's journey. It starts with a vivid scene of a military celebration in Mexico, marking the end of a victorious war, where Brinton, a lieutenant colonel, arrives disheveled and drunk, interrupting the ceremony. As the crowd reacts to his disrespectful behavior, it becomes clear that Brinton's past is marred by his consumption of alcohol and subsequent dishonor. The subsequent chapters reveal his struggles with alcoholism, the abandonment of his military career, and the impact of his choices on his son and grandson. Brinton's attempt to reclaim his dignity, particularly through his relationship with his grandson, sets the stage for an exploration of redemption and the enduring bonds of family. (This is an automatically generated summary.)