Neville's traumatic past may have been obliviated, explaining his bad memory and a mysterious event. The theory adds tragedy to Neville's backstory, making his story even sadder. The theory ...

J.K. Rowling has debunked one of the craziest "Harry Potter" fan theories out there. In 2004, someone wrote a 4,000-word message-board post explaining a theory that Dumbledore is actually a time ...