All I knew about the event I was scheduled to photograph was that it was a tea service at Blithewold Mansion and Gardens in Bristol, RI. And that most of the guests would be in costume. Blithewold is a beautiful place to photograph, and I had photographed other events there, but I knew nothing of the group attending this event. When women started arriving in elaborate costumes, I knew this might be special. The group was the Boston Lolita Society,…