Later Dr.Mortimer began telling him a story. He is a doctor, which he has been living in the city. Dartmoor, which has a large area and quite dangerous. In Dartmoor has a big house the only one that is Baskerville Hall by from the original landlord is Sir Charles.The Dr.Mortimer has served as both the doctor and the friends of the Sir Charles. Holmes know the news of the death of Sir Charles from newspaper. The story of death occurs when the three months ago.