My ending of this story...

So, this story ended up that Sherlock Holmes understood that this mystery crime was made by Jack Stapleton. He is neighbor of Baskervilles and he is a nephew of Charles Baskerville. But Charles Baskerville left a will to another nephew - Henry Baskerville. And Jack Stapleton came in this country to Charles Baskerville and wanted to ingratiate oneself with his uncle. Charles Baskerville told him a legend about the horrible hound. Jack knew that Charles Baskerville has a heart trouble. And Jack bought a dog and brought her to moors. He Painted her muzzle glowing substance and let her. The heart of the earl was very weak and he died from the fear. jack wanted to kill Henry Baskerville also, but Sherlock stoped him.

Henry Baskerville became a lord of the manor of the Baskervilles. But what if Sherlock didn't stop Jack Stapleton!!! It will be my ending.

Henry called for help Sherlock Holmes. The awful hound was opposite Henry. His red eyes looked at Henry and from dog's jaws a white foam  flowed. Sherlock ran very fast but he missed. The hound pounced on Henry and bited to death. Sherlock shoted and the dog was killed. Sherlock and Watson came to the Henry's lifeless body. Sherlock said: "This case is closed, Watson. But you know, the first time in my practice, I didn't save my client." His words were sad. Sherlock called an ambulance. 

After funeral, he set in his chair with his violin and kept silence. After 4 or 5 days he said to Watson:" Watson, how do you think, Henry Baskerville forgives me?" "Yes, - answered Watson. -He forgives you. He was a very good man. Yeah. He forgives." Sherlocke smiled and some improvement was in his face.