No, Ariana was not a squib. A squib is a non-magical person born into a wizarding family. Ariana had magic, but because of the attack on her physically she tried to stop the magic inside her and it caused her to become an obscurial. Did Dumbledore really kill his sister, Ariana?
Obscurial: Ariana became an Obscurial after suffering extreme emotional trauma, which resulted in her developing a dark, parasitic energy which was known as an Obscurus. This power was extremely volatile and dangerous, which killed her mother Kendra in an uncontrolled explosion.
At the age of six, she was seen practicing magic by a group of Muggle boys. When she was unable to show them how to do the same thing again, they violently assaulted her. The attack left Ariana emotionally scarred and unable to control her magic.
The portrait acts as a doorway to the tunnel that leads to the Room of Requirements. Instead of leaving the portrait through the side of her frame, like most people in portraits do, Ariana is able to move down a long tunnel painted behind her.
Fantastic Beasts 3 reveals that Credence is Aberforth Dumbledore's illegitimate son. Since Grindelwald was telling Credence the truth about his name being Aurelius Dumbledore, it seemed logical that he's one of Albus Dumbledore's siblings.
Harry recognizes the man's blue eyes as those he's been seeing through the magic mirror, and he realizes that this man must be Aberforth, Dumbledore's brother, and that Aberforth was the one who sent Dobby.
To defend her students, McGonagall casts a series of spells Snape's way, but he manages to evade all of them before flying away. But what McGonagall doesn't know is that Snape is actually a double agent working for Dumbledore, so he has no intention of harming her.
The victim of this act was a six-year-old girl, Ariana Dumbledore, the younger sister of brilliant future Hogwarts headmaster Albus and future Hog's Head barman Aberforth. 'When my sister was six years old, she was attacked, set upon, by three Muggle boys.
After Aberforth confronted Grindelwald for a plan to take over the wizarding world that he and Albus had developed, a three-way duel broke out between them. Ariana tried to stop it and got in the way, but due to her inability to control her magic, she was killed by one of their spells.
Principles. The law was intended to create absolute segregation between the No-Maj and wizarding communities. It banned witches and wizards from marrying or befriending No-Majs, allowing only interactions "necessary to perform daily activities", and meted out "harsh" penalties for fraternisation with No-Majs.
Muggle-borns inherit magic from a distant ancestor; they are descended from Squibs who have married Muggles and whose families had lost the knowledge of their wizarding legacy. The magic resurfaces unexpectedly many generations later.
Although Aunt Petunia and Uncle Vernon were horrible to Harry, especially when he showed any resemblance to magic, the young wizard wasn't aware that he was magical. Harry's ignorance protected him from developing an Obscurus because he didn't develop a shameful attachment to his magic.
When a magical child was forced to repress their talent through physical or psychological abuse, they developed a parasitical magical force inside of them called an Obscurus, resulting from their strong emotions of distress.
By 1926, Credence had been losing control of his Obscurus, which was running amok in New York. During that time, Credence had gotten into contact with Gellert Grindelwald, who had been masquerading as Percival Graves, the head of the Department of Magical Law Enforcement (MACUSA).
Family. Snape's family background is mostly shown in flashbacks during the course of the last three novels. Snape was born to Eileen Prince, a witch, and Tobias Snape, a Muggle, making him a half-blood (hence the name, "Half-Blood Prince").
Aurelius Dumbledore (born c. spring 1900), also known as Credence Barebone through adoption, was an English-born American half-blood wizard who lived during the 20th century. He was the son of Aberforth Dumbledore and an unnamed woman. One year after his birth, he was unexpectedly taken to America with his aunt.
The once shy and awkward Neville Longbottom showed his true bravery during the battle of Hogwarts and eventually became the head of Gryffindor House while also teaching new students Herbology, his favorite subject.
Loyalty. Professor Marazion succeeded Minerva McGonagall in the post of Head of Hogwarts School of Witchcraft and Wizardry. This individual became Headmaster or Headmistress some time between 2008 and 2017 after Minerva McGonagall went into retirement as she was "getting on a bit".
Dumbledore tells Newt Scamander (Eddie Redmayne) that in 1899, during the same summer that Albus fell in love with Grindelwald, Aberforth also fell in love with a woman from Godric's Hollow. They had a baby boy together, but the woman was sent away before she gave birth, and Aberforth never got to be a father.
Aurelius was an illegitimate child of Aberforth's. His mother is killed, and as a result Aberforth is unable to care for his son. Credence is taken to America and put up for adoption, a fact known to no one but Leta Lestrange (Zoe Kravitz).
As Aberforth was an old and grumpy person, he didn't have a good relationship with many people. However, Dobby offered friendship and someone to talk too. Aberforth himself stated that he liked Dobby. In 1998, Harry Potter and his friends were captured by Snatchers and imprisoned at the Malfoy Manor cellar.
