@ the Castle
There are already pictures coming out from the event.
Go HERE for pics.
And as Jo was quoted as saying the following as she was being ushered down the red carpet:
"There are a lot of answers in this book," she said, above the noise of the crowd, packed into chairs and behind barriers.
"I can't wait for everyone to read it," she said, adding that she had left a copy of the book with her daughter.
"When I left her she was laughing at something," Rowling added.