The Terrible Troll by Martin O'Hearn
Approx. 81,150 words.
Published on July 7, 2011.
1937. A supercriminal's plot has left his victims in New York living corpses. Adventurer King Hudson and his reluctant young partner Robin Pace pursue the Troll's zeppelin trail to a stronghold in Nazi Germany, and beyond—through the gateway to a hidden domain whose super-science weapons could destroy the world...