The novel follows the story of Cousin Henry, a poor and timid man who inherits a large estate from his wealthy uncle. However, he soon finds himself in a difficult situation when a mysterious document comes to light, which may invalidate his inheritance. Henry struggles with his conscience as he considers whether or not to reveal the document, and his guilt begins to take a toll on his mental and physical health. Meanwhile, his cousin and rival for the inheritance, Isabel Broderick, begins to suspect that something is amiss and sets out to uncover the truth.Trollope's writing style is characterized by its realism, wit, and psychological insight. He is known for his ability to create complex and multifaceted characters, and to explore the moral and social issues of his time with empathy and insight."Cousin Henry" is a compelling and suspenseful novel that combines elements of the Gothic genre with Trollope's characteristic social commentary. It is a powerful exploration of the human psyche and the struggle between conscience and self-interest, and it continues to be read and enjoyed by readers today.