The pain in Harry's head was so bad he fell to his knees. It took a minute or two to pass. When he looked up, the figure had gone. A centaur was standing over him, not Ronan or Bane; this one looked younger; he had white-blond hair and a palomino body.
"Are you all right?" said the centaur, pulling Harry to his feet.
"Yes –– thank you –– what was that?"
The centaur didn't answer. He had astonishingly blue eyes, like pale sapphires. He looked carefully at Harry, his eyes lingering on the scar that stood out, livid, on Harry's forehead.
"You are the Potter boy," he said. "You had better get back to Hagrid. The forest is not safe at this time –– especially for you. Can you ride? It will be quicker this way.
(Harry Potter and the Sorcerer's Stone)
Is it a dummy pronoun, and "this way" the semantic subject?