Addendum: He Is Also A Liar

Harry Potter, Minerva McGonagall, Ron Weasley, Hermione Granger, Albus Dumbledore, Tom Riddle, Rubeus Hagrid, The Weasleys, Hermione Granger/Tom Riddle, and lots of other canonical characters

Slow Burn Bullying Time Travel Pre-Hogwarts accidental magic For a bit anyway Tom Riddle is genuinely not okay And it takes Hermione a very long time to realize that Eventual Tomione Manipulative!Tom brief mentions of violence Timeline chicanery Spoilers for The Philosopher's Stone (Eventual Spoilers for Years One Through Seven) Canonical Animal Abuse (brief) Canonical Blood Prejudices moral ambivalence Surprisingly Dangerous Quirrell Anachronisms and Historical Inaccuracies if you look for them Please don't look for them