just do a google search for book club meetings. You're bound to find announcements of times and places for them. I would bet if you did enough legwork you'd find a book club that meets in that very town, and could then ask City Hall why the book club gets to meet and the religious book club does not. The next question would be "how many people are allowed to gather in a private home before you declare it an unlawful assembly?"
The followup questions are "Are you aware that freedom to assemble is a basic constitutional right, as is the right of the people to be free from arbitrary restrictions on their religious practices, especially within their own private homes?" and "so have you guys heard of the Constitution?"
