UPDATED 10:40 Friday night.

A large crowd of adults and children, some dressed as wizards, are lining up outside of the Community Bookstore in Park Slope waiting for the festivities to begin. Some are sitting on lawn chairs and some are reading Harry Potter books.

Hepcat reports that David Yassky is there dressed in a blond wig. "I don’t know if he is dressed as a wizard or he is just in drag," Hepcat says.  "The horses are going back forth. The riders are dressed as vikings or construction workers, I can’t quite tell. Helmets and hoods. That sort of thing."

Hepcat got a shot of Yassky and his family, as well as dozens of others. He set up his portable photography studio in from of the bookstore. Community Bookstore owner, Catherine, is in her owl costume.

OSFO just back from sleepaway camp is fast asleep on the couch in our living room. "You’re missing quite a show Hepcat said.

The store will open at midnight to sell the book. Advance tickets are required because the store has limited capacity. The owner and her staff have been working for weeks to create a magical party atmosphere. There is much theatricality planned, including two riders on horseback.

Tonight will be a big revenue night for the Community Bookstore, and other local bookstores. The store has been struggling financially in recent years. Things were beginning to look up even before this event, when many in the community banded together to create a viable business plan that would help the store survive in the longterm.

Tonight should be a much needed windfall for the store, which was featured in an article about local Harry Potter celebrations in today’s New York Times.

Hugh Crawford (AKA No Words_Daily Pix) will be taking pictures outside of the store of wizards and muggles alike.