Octavia, Daughter of God: The Story of a Female Messiah and Her Followers by Dr Jane Shaw.
It's all about an unusual religion that flourished in the 20s and 30s which believed in a foursquare God as opposed to a trinity. They also believed that their leader was the daughter of God, here to save the body as Jesus saved the soul. They were located in the smallish English town of Bedford and regarded the garden of their headquarters as the original Garden of Eden.
The religion doesn't exist anymore but the headquarters have been turned into a museum which means that last year I had a pot of tea and a lemon drizzle cake in the Garden of Eden.