Harry Paces in His Room, Fearing He Poses a Danger to His Friends

After arriving at Grimmauld Place, Harry isolates himself in his and Ron's room, pacing as he tries to make sense of his experience. He considers the possibility that Lord Voldemort is possessing him and that he could be putting his friends in danger by staying at Grimmauld Place. Harry contemplates leaving to return to Privet Drive to protect the others, despite the miserable prospect of doing so.