Dark Mountain — C. B. Pratt

In the new adventure, the third in the series, Eno sets off to find the truth about himself and his possible descent from the gods themselves. Instead he becomes involved with a race of people kidnapped from their homeland, set to toil endlessly by the will of a mad philosopher. Facing his own fears and doubts and the curse of the Great God Pan, Eno also finds a woman worthy of his love, danger around every curve, and mushrooms...lots and lots of mushrooms. Meanwhile, a hidden menace from long, long ago threatens the civilized world and only Eno the Thracian, Hero for Hire, can stop the inevitable destruction.