<P> Luna, Ron, Ginny, and Neville join them in the forest and all six fly to the Ministry on thestrals, expecting to find and rescue Sirius . Once in the Department of Mysteries, Harry realises that his vision was falsely planted by Voldemort; however, he finds a glass sphere that bears his and the Dark Lord's names . Death Eaters led by Lucius Malfoy attack in order to capture the sphere, which is a recording of a prophecy concerning Harry and Lord Voldemort, which is revealed to be the object Voldemort has been trying to obtain for the whole year, the Dark Lord believing that there was something he missed when he first heard the prophecy . Lucius explains that only the subjects of the prophecies, in this case Harry or Voldemort, can safely remove them from the shelves . During a heated fight Neville accidentally kicks and smashes the prophecy . Harry and his friends, soon joined by members of the Order, enter a battle with the Death Eaters, during which Bellatrix Lestrange kills Sirius and Voldemort himself arrives to kill Harry, but Dumbledore rescues him and climatically fights the Dark Lord to a stalemate . In the midst of the duel, Voldemort unsuccessfully tries to possess Harry in an attempt to get Dumbledore to kill the boy, then escapes just as Cornelius Fudge appears, finally faced with first - hand evidence that Voldemort has truly returned . </P> <P> In his office, Dumbledore explains that Snape had understood Harry's cryptic warning, and had subsequently contacted Sirius, learning that he was still at Grimmauld Place . After Harry failed to return from the Forbidden Forest, Snape deduced where he had gone and alerted the Order of the Phoenix, allowing them to save Harry and his friends . It is revealed that during the Christmas holidays, Kreacher had interpreted a command of Sirius's as an order to leave the house, and went to Narcissa Malfoy, the wife of Lucius, and told them about Harry and Sirius's close relationship; Voldemort subsequently realised that he could lure Harry to the Department of Mysteries by tricking him into thinking that Sirius was in danger there . </P> <P> Dumbledore then explains the prophecy: Before Harry was born, Professor Trelawney predicted that a boy with the power to defeat Voldemort would be born, would be marked as an equal by Voldemort and have powers unknown to him, and that one of the pair must kill the other, for "neither can live while the other survives". Voldemort learnt of the first part of the prophecy, and subsequently tried to murder Harry in the belief that he could prevent it from coming true, unaware that he would grant Harry power by doing so . Dumbledore tells Harry that he must stay with the Dursleys for one last summer because by taking Harry into her home, his Aunt Petunia, Lily's sister, seals the protection that Harry's mother afforded him when she died; as long as he is there, he is safe from Voldemort and his followers . </P> <P> Harry comes to terms with the responsibility of the prophecy, but mourns for the loss of his godfather . Luna comforts him, telling him about her and her father's belief in heaven . Harry then finds an old hand - held mirror in his dormitory that was a gift from Sirius . He realises that Sirius would not want him to be depressed on the matter, and resolves to continue fighting Voldemort . </P>

Harry potter and the order of the phoenix important events