A group of die-hard Harry Potter fans proved Friday night that even muggles know how to party like it’s the Triwizard Tournament Yule Ball.

The Issaquah Youth Advisory Board held a Harry Potter Night for area 10- to 13-year-olds at the Issaquah Community Center March 18, putting on activities inspired by J.K. Rowling’s young adult fantasy novels and their film adaptations.

The event was organized by Jacob Hansen, Kelly Hodder and Megana Shivakumar, three Issaquah High School freshman on the Youth Advisory Board.

They’re all fans of the world of Harry Potter. Though the series debuted in 1999, ended as a novel series in 2007 and ended its main film run in 2011, its maintained a strong fandom among children and adults alike.

“It’s a whole new world you can immerse yourself in,” Shivakumar said. “It’s an exciting story.”

The night was treated like a compressed year at Hogwarts School of Witchcraft and Wizardry. Roughly two-dozen tweens were placed into houses Gryffindor, Hufflepuff, Ravenclaw or Slytherin by the Sorting Hat — played by Hodder under the table.

Thusly divided, they moved on to classes in subjects like Quidditch, Divination, Potions and Defense Against the Dark Arts.

“Whoever gets the most points in class wins the House Cup at the end of the night,” said Jacob Hansen, an Issaquah High School freshman and one of the organizers of the event.

After a night of tough competition, that honor went to House Ravenclaw.

“J.K. Rowling created something so complex and fun,” Hodder said. “I mean, I wish I were a wizard.”

The Youth Advisory Board is a group organized by the city of Issaquah and made up of representatives from each of the Issaquah School District’s middle and high schools . The Board’s action subcommittees organize events like Harry Potter Night, as well as community service projects and fundraisers.