The Stone Builders
by John Lars Shoberg
(4.00 from 1 review)
For the past decade, Humans and Wassarans have co-colonized the planet of Ranklin, but the unrest of fanatics simmers. Then scientists discover they are not the first culture to live here. While they try to determine who these others were, where they came from and where they went, opposing fanatics threaten the entire colony. Something else threatens it, too.