Luna Lovegood

Fourth year

There's room in this one, there's only Loony Lovegood in here — Don't be silly, she's all right.Ginny Weasley introduces Luna to Nevile Longbottom

In Luna's fourth year, she met and befriended Harry Potter, Ronald Weasley, Hermione Granger, and Neville Longbottom. She believed Harry's declaration that Lord Voldemort was back. As the year progressed, she was invited to join an undergroundDefence Against the Dark Arts group calledDumbledore's Army, that was taught and led by Harry Potter. This organisation was to teach practical defence. She eagerly accepted, working hard along with the others and enjoying their company. In an effort to make people believe Harry's story, Hermione arranged an interview for him with Rita Skeeter at the Three Broomsticks — Luna accompanied them so as to persuade her father to publish the interview in The Quibbler. The copy sold out, every Hogwarts student and possibly every professor as well, read the copy because of the Education Decree that stated that it was banned on school grounds.
Near the end of the year, Harry had a vision that his godfather, Sirius Black was being tortured by Lord Voldemort in the Department of Mysteries. Luna and Ginny stood guard while Harry and Hermione snuck intoProfessor Umbridge's office, to use the fireplace to try to contact Sirius, while Ron attempted to distract Umbridge. However, they were caught, along with Neville Longbottom, by Umbridge and members of the Inquisitorial Squad. They were restrained and gagged, but Luna hardly seemed bothered by this as she was staring, dreamily, through the window as if bored. Harry and Hermione drew Umbridge away into theForbidden Forest, and Luna, Ginny, Ron, and Neville managed to escape from the Inquisitorial Squad using a variety of hexes and jinxes. When they all met up again in the forest, Harry planned to go to the Ministry of Magic. Luna reminded Harry about theThestrals and suggested using them to get to the Ministry. She then mounted her Thestral side-saddle, "as though she did this every day." She also helped Ron, Hermione and Ginny mount their Thestrals, as the animals were invisible to them. The six D.A. members flew to the Ministry and entered theDepartment of Mysteries, where Luna heard voices coming from behind a Veil, just as Harry did. The group was soon ambushed by twelve Death Eaters.

Luna participated in the battle that ensued. She protected Ron, who had been hit with aspell that made him highly confused. Luna also attacked a Death Eater who had seized Ginny's ankle with the Reductor Curse, which destroyed a model of the planet Pluto. The model blew up in the Death Eater's face; however, the impact broke Ginny's ankle. Luna guided both the injured Ginny and theConfunded Ron until they met up with Harry and Neville. Luna was one of the last D.A. members to fall, eventually being stunned by a Death Eater and thrown across the room. She regained focus just before the end of the battle and survived relatively unscathed. At the end of the school year, Luna spoke to Harry, who was mourning the murder of his godfather and had found no comfort in talking to ghosts. Luna told him about her mother's death and her belief that she would see her again someday, which was a comforting thought to Harry.

That summer, Luna and her father went toSweden using the money the Daily Prophetpaid them to reprint The Quibbler's interview with Harry to see if they could catch aCrumple-Horned Snorkack.