Harry Potter and the Surprisingly Competent History of Magic Professor Novel

Cassian Rosier, a near-Squib scorned by his prestigious pureblood family, vanishes when a spell goes wrong. In his place awakens a man from our world—a teacher with no magic and only fragmented knowledge of Harry Potter. Trapped in a body with no power and a terrible reputation, he must find a way to survive. When forced to lecture on magic, he bluffs his way through teaching Lumos. As students master the spell, something unexpected happens: magical knowledge floods his mind, and ancient variations of spells awaken alongside memories that aren't his own. Some memories offer forgotten magical secrets; others are disturbing and dangerous. Now appointed as Hogwarts' History of Magic professor, Cassian navigates pureblood politics, suspicious colleagues, and his mysterious growing abilities. Each spell he teaches strengthens him while pulling him deeper into an ancient past that may ultimately consume him. A snarky professor accidentally becomes too competent while juggling ancient magic, family expectations, and students who constantly test his patience.