All the evidence I’ve found at Quivira demonstrates one thing: a group of Aztecs, or rather their Toltec predecessors, invaded the Anasazi civilization around A.D. 950 and established themselves here as a priestly nobility. Perhaps they were even responsible for the great building projects at Chaco and elsewhere.” “I’ve never heard anything so ridiculous,” Black said. “There’s never been any sign of Aztec influence on the Anasazi, let alone enslavement.

