Harry Falls into a Troubled Sleep and Dreams of a Mysterious Door

After an exhausting and emotional day, Harry reluctantly stays in his room, as ordered by Dumbledore, and falls into a restless sleep. He dreams of walking down a dark corridor towards a plain black door, feeling an intense desire to open it, but he cannot. He wakes when Ron briefly enters the room to call him for dinner, but Harry, feeling guilty and isolated, decides to stay in bed instead of joining the others.