I finished "Shattered dreams. My life as a polygamist's wife" by Irene Spencer.
Former Fundamentalist Mormon speaks out about her life as a second wife in a polygamous marriage. She was married at 16, endured enormous hardships, living for years without common benefits of civilization, like water and electricity, was sharing her husband with 9 other wives, was mother to 13 children, and was mostly unhappy and depressed. She did it, because she believed in the afterlife as an exalted goddess, which could be obtained only by living "The Principle".
Hart rending as it is, I was amazed by the strong convictions implemented during her childhood that did not leave her mind, and despite the doubts, carried her to a distant lands and a life which many have no clue about. Real brain washing works. It is sublime, perverse and totally controlling.
The best news is, that she has found God's love at the end of it all. Currently she has 119 grandchildren and 37 great-grandchildren.
Read more in her website IreneSpencerBooks.com and an interview with her.
Good video called "Lifting the veil of polygamy" introducing stories of people who lived through similar circumstances.