Cover art
Hood, Ken. Demon Sword. HarperPrism 1995 (cover art by Jean François Podevin).
Cover art
Hood, Ken. Demon Knight. HarperPrism 1998 (cover art by Donato Giancola).

Hood, Ken. The Years of Longdirk
Divergence: 1241 CE
What if: Ogedai Khan did not die in 1241 and the Mongols continued their advance into and conquest of Europe. Also, Christianity never grew to become a major religion and many towns rely on the benevolence of a local spirit.
Series note: Trilogy consisting of Demon Sword, Demon Rider, and Demon Knight.
Comments: Ken Hood is a pseudonym for Dave Duncan.

Hood, Ken. Demon Sword
Divergence: 1241 CE
Summary: In 1519, a young Scotsman finds himself the quarry of an English hexer, and apparently also possessed by a demon.
Series note: First volume of The Years of Longdirk.
Published: HarperPrism 1995 (0061054100).

Hood, Ken. Demon Rider
Divergence: 1241 CE
Summary: The further adventures of Longdirk in Spain, traveling through land devastated by the Fiend now ruling England and suffering visions of a future in which he will be captured by the Inquisition.
Series note: Second volume of The Years of Longdirk.
Published: HarperPrism 1997 (0061057584).

Hood, Ken. Demon Knight
Divergence: 1241 CE
Summary: While preparing for the final battle against the Fiend, Longdirk is embroiled in Florentine politics.
Series note: Third volume of The Years of Longdirk.
Published: HarperPrism 1998 (0061057592).