Armies of Heaven: The First Crusade and the Quest for Apocalypse

At Moson, the river Danube ran red with blood. At Antioch, the Crusaders -- their saddles freshly decorated with sawed-off heads -- indiscriminately clogged the streets with the bodies of eastern Christians and Turks. At Ma'arra, they cooked children on spits and ate them. By the time the Crusaders reached Jerusalem, their quest -- and their violence -- had become distinctly otherworldly: blood literally ran shin-deep through the streets as the Crusaders overran the sacred city.

Beginning i...