Accio Potterheads! If you’ve ever wanted to know what your Patronus would be, you’ll soon have the answer — thanks to the new Patronus test released on Pottermore — a.k.a. the Harry Potter fan site who lived — on Thursday (September 22).

Fans have been wanting to know what theirs would be ever since Harry Potter and the Prisoner of Azkaban, when Harry, Ron, and Hermione first learned about the Patronus Charm (the spell that summons a spirit guardian) in Professor Remus Lupin’s Defense Against the Dark Arts class.

J.K Rowling originally teased the test a little over two years ago, and she proudly announced it today on Twitter. She also revealed her Patronus to be a heron.

So drink some Butterbeer, have your wand at the ready, and prepare to learn your Patronus at long last. You can take the quiz here.