in a trance and unaware of what she is saying, with no memory of it afterward. Almost all her predictions were later shown to be true in the books even if she was not in a trance. Before the events of the Harry Potter books, Trelawney falls into a prophetic trance during an interview with Dumbledore at the Hog's Head, making a prophecy about the birth of a wizard "with the power to vanquish" the dark lord, Voldemort. This prophecy is partly overheard by Snape, who relays what he heard to Voldemort. This leads Voldemort to attack the Potter family, believing that Harry was the child named. In Harry Potter and the Prisoner of Azkaban, Trelawney erroneously predicts that Harry was born around Midwinter, even though he was born on 31 July, with it later being revealed that this slip-up was because Trelawney was unknowingly reading the piece of Voldemort's soul within Harry. She also accurately prophesies to Harry about the events of the book's climax, including Peter Pettigrew's return to Voldemort's side. In Order of the Phoenix, Trelawney is first put on probation by Umbridge, and later fired. Dumbledore intervenes to allow Trelawney to stay in the castle, as he believes that she would be in danger outside Hogwarts due to the prophecy she made during her interview, and recruits Firenze from the centaur herd in the Forbidden Forest to replace her as a way of spiting Umbridge. Dumbledore later reveals that the prophecy is why he keeps her employed as a Divination teacher. After Umbridge is ousted, Trelawney returns to teaching in Half-Blood Prince, but has to share classes with Firenze, as he was cast out by his fellow centaurs when he agreed to replace Trelawney after she was fired, which she thinks is an outrage. In Harry Potter and the Deathly Hallows, she is seen aiding in the Battle of Hogwarts by magically accelerating her crystal balls at Death Eaters. She uses one of these crystal balls to defend an injured Lavender against an attack by Fenrir Greyback. In the film adaptation, Harry Potter and the Deathly Hallows – Part 2, she is seen covering someone's body, with the aid of Padma Patil. In the British editions of the books, her name is consistently spelled as "Sybill". In the American editions, from her first appearance in Prisoner of Azkaban through Order of the Phoenix, her name is