Hogwarts: Azkaban's Top Students

Many years later, people could always find this comment in the Daily Prophet about the dark wizard who saved the world: "Man, listen, when you meet him, you have only one choice, and that is to surrender." - Fenrir, the werewolf; "When I see him, I know that death is not far away." - Bellatrix, Death Eater; "Don't call me the Dark Lord, there is someone more suitable for this title than me." - Lord Voldemort; "I hate him." - Severus Snape; "Who?" - Gellert Grindelwald; "He is the Merlin of this era, this is my most conservative assessment." - Nico Flamel; "He proved beyond a shadow of a doubt that there is no good or evil in magic." - Albus Dumbledore; "Please ask him, when can I get my magic suitcase back?" - Newt Scamander; "I heard that he defeated a dragon. I guess he must be a big man and very strong." - A wizard passing by the Pig's Head Tavern; "Huh, him? He's just a piece of wood, that's all." - A certain Miss Granger who did not want to be named; "He is not a piece of wood, he is a magical genius!" - Harry Potter who survived. ......... However, the dark wizard everyone said was now a squib, without any magic skills, and had not received an admission notice from Hogwarts School of Witchcraft and Wizardry. (The introduction is weak, please read the text)