Apprentice: Demon Summoner, Book 1 (Unabridged‪)‬

The year is 1642.

As a decades-long war rages through Central Europe, military field surgeon Martin shares a shocking truth with his apprentice Gustav: Demons are real, and the victims of battle are their reward for fighting for mankind. A reveal that changes everything…

Historical facts combined with elements of fantasy and sprinkled with a good dose of humor.