Berman-Gorvine, Martin. Save the Dragons!
Divergence: 1775 CE
What if: American colonists never revolted against Britain, and there are dragons descended from quetzelcoatlus.
Summary: A teen-age girl discovers a portal to another world where Napoleon conquered Europe and Philadelphia is capital of Britain-in-exile.
Published: Wildside 2013 (1434442276BUY).