Buckell, Tobias. "The People's Machine"
Divergence: 1520 CE
What if: After the death of Montezuma, the Aztecs rallied to destroy the Spanish invaders.
Summary: Centuries later, an Aztec diplomat is dispatched to Dutch/British New Amsterdam to investigate a murder with aspects of ancient Aztec rituals.
Published: In Sideways in Crime: An Alternate Mystery Anthology (ed. Lou Anders), q.v.
Awards: Finalist: 2008 Sidewise Award for best short-form alternate history.