I did not know it was you," I answered. Mr Frankland you through his telescope. And he saw the boy who brought you food and letters. He thought you were selden the murderer. Also, I saw you last night on the Tor.'I see, said Holmes. If you saw me, l think the murderer of Sir Charles Baskerville saw me too. He will want to kill me as well as Sir Henry.' 'So, I said, you think that Sir Charles was murdered? "I am sure of it,' said Holmes. Now, stay on the path It was dark and the moon had not come up. We had to walk carefully. The path went through the Great Grimpen Mire and a sea of soft mud lay under the grass on either side of us. Behind us, we heard that strange sound, the deep howling sound I had heard on the moor last night. It made me shiver with fear.