Prisoner of hogwarts

"Albus Dumbledore made two great mistakes in his life: one was Tom Riddle, and the other was Jim Lynch." Jim Lynch, the "Mist Hangman," a forbidden legend who hunted hundreds of dark wizards, was locked in the Forbidden Forest by Dumbledore himself. When the savior Harry enrolled in school, he tore open his cage and returned to the wizarding world as a professor. Dumbledore regarded him as a hidden danger, and the Ministry of Magic became his chess game, with death walking with him. When the sky of Hogwarts was set on fire, Lynch stepped out of the fire and smiled elegantly at Voldemort: "Hello, Tom, did you miss me?"