Draco ripped out a piece of paper from an unknown book in the beginning of Chamber of Secrets. Hermione had a ripped out piece of paper talking about the Basilisk in the movie. Not sure I agree, but it's food for thought!
There's actually a book series (for kids) about it! I loved them! PotC was my first big fandom, just because I thought Captain Jack was such an amazing character! There's a ton of lit published by Disney about all the characters' back stories.
Mother Gothel's affection was all about the hair. Eugene's wasn't.