It must have been the Count himself who was the driver of the coach that brought me here. This is a terrible thought, for if so, what does it mean that he could control the wolves, as he did, by only holding up his hand for silence?
– Bram Stoker
Dracula, Chapter 3. It took a few days of staying in Castle Dracula for Jonathan Harker realize that the strange coach driver who brought him there was Count Dracula in another human form, who had power over wolves.