Best Seller deals with the life of a business worker of a plate and glass company who believes that fictions are unrealistic and according to him a man always marries a girl of the same background. The story starts with the narrator traveling in a chair car on his way to Pittsburgh where he meets john A. Pescud, an old acquaintance. John was reading a bestseller THE ROSE LADY and Trevelyan John thought that these stories were imaginary. then after a little formal chat on happenings in their lives john told that he was married. 

John was traveling to Cincinnati when he saw the finest maiden of all and fell in love then he followed her all the way to her home town keeping a sharp unpredictable distance from her eyes. he went in a hotel for the night to stay where the manager on asking said that the biggest mansion at top of the hill was of Colonel Allyn. Then suddenly the maiden of his dreams came, he went to her and started the conversation,which ended with her revealing the truth that she knew John was following her and she was glad he didn't talked with her and the next challenge to him was to enter the girl's house which was none other than the colonel's mansion.