"The Half Brother" is a novel by Larry Watson that explores the complex relationship between two boys, Gordy and Adam, who share the same father but have different mothers. Set in the American West, the story unfolds against the backdrop of family dynamics, secrets, and the challenges of growing up. As the boys navigate their childhood, they face various trials that test their bond. The narrative delves into themes of identity, loyalty, and the impact of family history on personal development. Through their experiences, the novel highlights the struggles of understanding oneself and others in a fractured family.