In Sir Arthur Conan Doyle's story, The Hound of the Baskervilles, Chapters 1 through 5 set up the story problem and begin the quest for the mystery's solution. Holmes and Watson, who narrates, are introduced and the curse of the Baskerville family is explained. An ancestor of foul and wicked temperament called on the powers of darkness and evil to aid him to capture the woman he coveted but who had escaped his imprisonment. His wish was granted for he caught the girl as she fled across the moor but, as the reward of his success, he was turned upon by the powers of darkness that aided him and there met his own horrid end in payment for the help granted him. Thus began the curse of the Baskervilles. The problem presented in Chapter 3 and expanded on in Chapters 4 and 5 is the entrance of Sir Henry Baskerville who is to inherit the Baskerville estate, bu it is the earnest hope that he will not inherit the Baskerville curse.
Chapters 4 through 10 are the evidence collecting chapters in which Watson goes as Holmes's emissary to Baskerville Hall to learn what he can of its inhabitants and servants and of the area of moorland around Baskerville Hall. Watson sends regular reports to Holmes who had to stay in London to finish another important case. Watson learns much about the inhabitants of the Hall and others living nearby. He comes to entertain suspicions about the servants named the Barrymores and continues to send reports to Holmes.
From Chapter 11 onwards, Holmes himself is on the scene after having come down to Baskerville in secret disguise and staying out of Watson's notice until the time was right to reveal himself. Holmes gains more understanding and begins to suspect the correct villain and the villain's motives, which dispels the notion of supernatural trials and visitations. In Chapter 14 the accursed hound of the Baskervilles and the villain are revealed, slain and stopped and the mystery is solved. All that is left is for Watson to wrap the adventure all up in the retrospection of Chapter 15.