The Order of the Phoenix is a secret organisation in the Harry Potter series of fiction books written by J. Before the Harry Potter series starts – when the character Lord Voldemort declared war on the wizarding world – Albus Dumbledore, headmaster of Hogwarts School of Witchcraft and Wizardry and a highly upstanding and powerful citizen of the wizarding world, attempted to take control of the situation by founding the Order of the Phoenix.
Founded by Albus Dumbledore to fight Lord Voldemort and his followers, the Death Eaters, the Order lends its name to the fifth book of the series, Harry Potter and the Order of the Phoenix.
Many of the original members returned and were soon joined by recruits who effectively replaced those who had died in service during the first conflict.
The Order established their headquarters at Number Twelve, Grimmauld Place, Sirius Black's family home, during the interval between the fourth and fifth books in the series.
The Longbottoms were also tortured to insanity at the hands of Bellatrix Lestrange.
Voldemort's first reign of terror ended after the murders of James and Lily Potter, and the unsuccessful attempt to murder their son, Harry Potter, at the beginning of the series.
He produces a wizard's tool known as the Street Darkener, and, with a practiced angling of the arm, begins to siphon away the clarity made from mankind's bulbs.