Two and a half weeks after the release of Fantastic Beasts and Where to Find Them, fans have blown wide open a theory about two important characters from the wizarding world.
In a post on Reddit, user Janu567 reveals a possible reason as to why Hogwarts headmaster Albus Dumbledore’s sister, Ariana, is rarely talked about in the Harry Potter series.
And it’s because, according to Janu567 at least, Ariana was an obscurial.
Image via Warner Bros.
Like Credence in Fantastic Beasts and Where to Find Them, an obscurial is a magical parasite that develops when a wizard or witch doesn't use their powers or tries to hide their true self from those around them. But the more a witch or wizard tries to suppress their magical ability, the more likely their magic is to destroy them.
As readers of J.K Rowling's best-selling books will remember, Ariana Dumbledore's death was caused by a fight with her mother.
But despite being the sister of one of the world's greatest wizards, her presence isn't known until Harry Potter and the Deathly Hallows - the final installation in the seven-part series. And even then, she is only mentioned twice - once in an obituary, and then again at the end of the series when Harry meets Aberforth, Dumbledore's brother.
"She wouldn't do magic, but she couldn't get rid of it; it turned inward and drove her mad, it exploded out of her when she couldn't control it..." Aberforth told Harry in the movie.