Book 5 | Ch:34 - The Department of Mysteries

SPOILERS:

Harry, Ron, Hermione, Neville, Ginny, and Luna fly to London on thestrals. They are allowed access into the Ministry of Magic through the red telephone booth, and they enter the Department of Mysteries. They make their way to the room containing small glass spheres, one of which is marked with Harry’s name, and is later discovered to be a mysterious prophecy.