Holmes and i were surprised. This was a very strange story I did not believe that sir Charles Baskerville had been killed by a gigantic black dog . But I wanted to know the truth. ' who else saw these footprint ? ' Asked Sherlock Holmes. His bright eyes shone and he leant forward in his chair . ' no one else saw these footprint ? ' answered Dr Mortimer ' there was a lot of rain in the night . By Morning , the footprint had been was away' ' how large were the footprint ? Were they large than the footprint of a sheepdog?. 'Yes , Mr Holmes , much large . They were not the prints of an ordinary dog.' 'Also you say that sir Charles ran away from this dog ? How do you know ? ' Asked Holmes.