If you've seen the film you are probably already making the connection from what happened there with the young repressed wizard that Grindelwald tried to manipulate, Ezra Miller's Credence Barebone, to what Ariana Dumbledore “had become.” Ariana was an Obscurial. farell-miller-fantastic-beasts. read more
Ariana Dumbledore was potentially an Obscurial too, as the description of her "illness" given by her brother Aberforth fit the description of an Obscurial; "It destroyed her, what they did: she was never right again. read more
It is not specifically stated in the books that Ariana Dumbledore was an Obscurial, but the description Aberforth provided to Harry about her fits the description of an Obscurial perfectly. "It destroyed her, what they did: She was never right again. read more
Ariana Dumbledore (c. 1885 – summer 1899) was a half-blood witch and the youngest child and only daughter of Percival and Kendra Dumbledore. She was the younger sister of Albus and Aberforth Dumbledore. read more