Watson realized that Holmes was living in a decayed house in the moor. Holmes tells Watson that he found out that Mrs. Stapleton is not the sister from Mr. Stapleton but his wife. They knew now that Stapleton ist the murder. When Holmes and Watson wanted to visit Henry, and then they heard a loud and acute shout. They followed this shout, and saw the hound and beside the hound the death body from Selden. the hound disappeard. Suddenly Mr. Stapleton cames and see the death body from Selden becames a Shock because he didn`nt wanted to kill Selden.