Here is the story of a working class woman, a silk weaver, born in the middle of the 19th century into a family of cotton weavers, who embraced a religion little known in the West.

There were seven names carved into the front of the gravestone and eight into the back - fifteen people in the same grave in Agecroft Cemetery, Salford. One was a remarkable woman, the first Bahá’í in the north of England: Sarah Ann Ridgway.

Set against the backdrop of a world moving from an agrarian society to an industrial one, Sarah Ann’s story gives us a glimpse into the lives of ordinary working people, their households, factories and schools.

But there is a story within this story: the determined quest of one Bahá’í woman to unveil the life of another.