Margot McKlveen ′13 helps apply some festive Ravenclaw war paint to Claire Fleckenstein ′13 before her muggle quidditch match.

Hannah Strom ′13 runs towards the net with the quaffle, trying to get the ball through one of three hoops.

Clare Boerigter ′14 exhaustedly hugs Claire Fleckenstein ′13 at the end of the quidditch match.

Jake Lindstrom ′14, eagerly runs down the quidditch field during the championship game.

A keeper reaches to make a save during the championship match between Hufflepuff and Slytherin.

Margot McKlveen ′13 rounds the corner into the Rosenfield Center courtyard in hot pursuit of the snitch.

Teddy Geiger ′15 and the Slytherin quidditch team celebrate their victory.

Broken brooms, quaffles, and bludgers pile up after the completion of the championship match.

House elf JoJo Ju ′12, center right, passes out treats to students in Quad before the Harry Potter costume contest.

Grace Carroll and Deborah Berk, both ′12, practice a little wizard dueling.

Costume contest participants line up before the awards are passed out.

One of the organizers for the event, Mary Jane Giesey ′12, right, confers as to which costumes should win awards.