Read it through once

At first this vague and terrible power was exercised only upon the recalcitrants who, having embraced the Mormon faith, wished afterwards to pervert or to abandon it. Soon, however, it took a wider range. The supply of adult women was running short, and polygamy without a female population on which to draw was a barren doctrine indeed. Strange rumours began to be bandied about—rumours of murdered immigrants and rifled camps in regions where Indians had never been seen. Fresh women appeared in the harems of the Elders—women who pined and wept, and bore upon their faces the traces of an unextinguishable horror. Belated wanderers upon the mountains spoke of gangs of armed men, masked, stealthy, and noiseless, who flitted by them in the darkness. These tales and rumours took substance and shape, and were corroborated and re-corroborated, until they resolved themselves into a definite name. To this day, in the lonely ranches of the West, the name of the Danite Band, or the Avenging Angels, is a sinister and an ill-omened one.