“An Unbreakable Vow?" said Ron, looking stunned. "Nah, he can’t have.... Are you sure?""Yes I’m sure," said Harry. "Why, what does it mean?""Well, you can’t break an Unbreakable Vow...""I’d worked that much out for myself, funnily enough.”

British author, philanthropist, producer, and screenwriter

J. K. Rowling, born Joanne Rowling, is a British author, philanthropist, producer, and screenwriter. She is known for creating the Harry Potter series, and she was born under her full name before becoming widely known by her pen name. Her Harry Potter books follow a young wizard across seven volumes and became the best-selling book series in history, with more than 600 million copies sold. She also writes the ongoing Cormoran Strike crime fiction series under the name Robert Galbraith.