The Summer of the Serpents (Book Cover)

Image from the movie Hellboy II: The Golden Army.
Background from Shutterstock.

Summary
It was a summer of half-heard whispers, vague words and swirling rumour but the wondrous, terrible tales being told held out the promise of hope to the beleaguered prince of a doomed race.  Nuada sees the true face of his enemy and is confronted with the enormity of his task.  Set 793AD. Approximately five chapters in total when finished.  Nuada, Wink.