NATIONAL BESTSELLER - From the author of Into the Wild and Into Thin Air, this extraordinary work of investigative journalism takes readers inside America's isolated Mormon Fundamentalist communities. - Now an acclaimed FX limited series streaming on HULU.

"Fantastic.... Right up there with In Cold Blood and The Executioner's Song." --San Francisco Chronicle

Defying both civil authorities and the Mormon establishment in Salt Lake City, the renegade leaders of these Taliban-like theocracies are zealots who answer only to God; some 40,000 people still practice polygamy in these communities.

At the core of Krakauer's book are brothers Ron and Dan Lafferty, who insist they received a commandment from God to kill a blameless woman and her baby girl. Beginning with a meticulously researched account of this appalling double murder, Krakauer constructs a multi-layered, bone-chilling narrative of messianic delusion, polygamy, savage violence, and unyielding faith. Along the way he uncovers a shadowy offshoot of America's fastest growing religion, and raises provocative questions about the nature of religious belief.