The Yanomamis think it's Armageddon.
For weeks, the Indians of northwestern Brazil's Roraima state, about 2,000 miles from Rio de Janeiro, have watched in fear as what officials call the worst fire ever to strike the Amazon rain forest edges toward their huts.
Searching the smoke-filled skies, the Yanomamis see angry spirits, descending plagues and the world's approaching end. They've turned to chanting for hours with their shamans, trusting Stone Age traditions to stave off a particularly 21st-century disaster.