On Thursday night, something magical happened in London: Bellatrix Lestrange and Narcissa Malfoy (sorry, I mean Helena Bonham Carter and Helen McCrory) reunited at the Save the Children's Magical Winter Gala. Armed with their wands and, in Helena's case, a pair of ears, they celebrated the 20th anniversary of the publication of Harry Potter and the Philosopher's Stone [1] in style, mingling with other famous faces such as the incredibly charming Luke Evans [2]. Read on to see more pictures of the night.