Hogwart's School for Witchcraft and Wizardry
“Moaning” Myrtle (between 1926 and 1932—13 June, 1943), was a Muggle-born witch who attended Hogwarts School of Witchcraft and Wizardry and was sorted into Ravenclaw house. She was killed in 1943 by Salazar Slytherin’s Basilisk, under Tom Riddle’s orders.
Now, she is a ghost who haunts the first floor girls’ bathroom (and occasionally other bathroom facilities) at Hogwarts. She is more commonly known as “Moaning Myrtle”.
Myrtle was a witch born to a muggle mother and father, making her a Muggle-born. She started her education at Hogwarts School of Witchcraft and Wizardry sometime during the late 1930s or the early ’40s. When she arrived at Hogwarts she was sorted into the house of Ravenclaw. While at Hogwarts she was unable to make any friends and would constantly be teased and bullied because of this and her physical appearance by her fellow students.
In 1943, some time into Myrtle’s education, the Chamber of Secrets was declared open for the first time. The Chamber of Secrets was a legendary chamber to have been built by Salazar Slytherin when he left Hogwarts and inside was believed to be a beast that only his heir could control. It was to be made out that Gryffindor student, Rubeus Hagrid had opened the Chamber, but in fact it was Tom Marvolo Riddle, a Slytherin student. Hogwarts was soon under threat of facing closure as Muggle-born students were being mysteriously attacked by the mythical beast thought to be down inside the Chamber.
On her final day of being alive, Myrtle was teased by student Olive Hornby. She had made fun of Myrtle’s glasses and, as a result, left Myrtle sobbing. Myrtle then ran into one of the bathroom’s stalls, took off her glasses and started crying. Shortly after Myrtle had entered the bathroom, Riddle entered and started speaking in Parseltongue in order to open the Chamber of Secrets, which entrance was hidden behind the bathroom sinks. The Monster of Slytherin (a basilisk) then emerged from the Chamber of Secrets’ entrance.
Myrtle, still in one of the stalls, recognized the voice as being from a boy. Opening the stall’s door, she yelled at Riddle to go away. On Riddle’s command, the Basilisk stared at Myrtle, and her eyes met with the monster’s. Looking at a Basilisk’s eyes being a fatal act, Myrtle’s body fell to the bathroom floor. Her death was the murder that Tom used to make his first Horcrux: the Diary.
Following her death, Myrtle returned as a ghost so she could haunt student Olive Hornby in revenge for her teasing and insults. Olive recruited the help of the Ministry of Magic to exorcise Myrtle, who was there after obliged to remain at Hogwarts School of Witchcraft and Wizardry. Myrtle haunted the bathroom where she had died, and was seen outside it only in other toilet facilities. As a result of her haunting, her favourite lavatory was rarely used, and was thus available for clandestine activities such as illegal potion-brewing, as long as one did not mind the company.