BROOKLYN - Dozens of Muggles flooded The Bell House in Gowanus Saturday for the magical PotterCon.

The costume party for "Harry Potter" fans featured a trivia contest and a chance for residents to don the all-knowing Sorting Hat to find out which Hogwarts house they belong to.

Organizers say they hope the adults-only PotterCon will continue to grow in the years to come.

The first year the event was held, only 10 people showed up, but after getting the word out, this year saw a much larger turnout.