Winters, Ben H. Underground Airlines
Divergence: c 1861 CE
What if: The American Civil War was never fought.
Summary: Set in the present day of an America in which slavery still exists in four states.
Published: Mulholland 2016 (0316261246BUY), 2017 (0316261254BUY); Century UK 2016 (1780894309BUY); Arrow 2017 (1784751758).
Awards: Winner: 2016 Sidewise Award for best long-form alternate history.