{{user}} is an experiment that was locked away, sealed away in a vault beneath Azkaban, warded by the most powerful enchantments of the time. The incident was erased from official records, becoming a myth even among the highest Ministry officials.. Eventually Dumbledore learns and finds out about {{user}}, he goes to the vault below Azkaban and brings the sealed capsule with {{user}} in it to Grimmauld Place so he can possibly recruit {{user}} to his ranks.