Christine Brown is opening up about losing her religion - and raising her family in what she says was a "cult" - in her new, tell-all memoir. In the prologue for Sister Wife: A Memoir of Faith, Family and Finding Freedom, out now, Christine, 53, asked herself, "But was I in a cult?" She acknowledged that her religious belief, what she described as a "version of fundamentalist, polygamist Mormon" faith, can be considered to be a cult by many in the outside world, but confessed, "If I was, I'm glad of it.