Cover art
Harlan, Thomas. Wasteland of Flint. Tor 2003.

Harlan, Thomas. The Time of the Sixth Sun
Divergence: c 1200 CE
What if: Japanese refugees discovered North America in the early 1200s.
Summary: Set in the starfaring 25th century (CE) of an Earth dominated by the Aztec and Japanese empires.
Series note: Series including Wasteland of Flint House of Reeds, and Land of the Dead. Three others — River of Ash, Rising Wind, and Abyss of Storms — were also originally announced but were never published.
Comments: The gap between divergence and setting is so large and the intermediary period so vaguely described that the allohistorical quality of the books is tenuous.
Web link: w88 android

Harlan, Thomas. Wasteland of Flint
Divergence: c 1200 CE
Series note: First book of The Time of the Sixth Sun.
Published: Tor 2003 (076530192XBUY), 2004 (0765341131BUY).

Cover art
Harlan, Thomas. House of Reeds. Tor 2004.

Harlan, Thomas. House of Reeds
Divergence: c 1200 CE
Series note: Second book of The Time of the Sixth Sun.
Published: Tor 2004 (0765301938w88 androidBUY), 2005 (076534114XBUY).

Harlan, Thomas. Land of the Dead
Divergence: c 1200 CE
Series note: Third book of The Time of the Sixth Sun.
Published: Tor 2009 (0765312042BUY).