The Spire

This is a classic science fiction novel by Marion Zimmer Bradley. This work tells the story of the Terran Empire and their quest to maintain a peaceful rule. However, on the planet Wolf something is afoot. They enlist the services of Race Cargill of the Terran Secret Service, and he goes undercover on Wolf to find the source of the problem. His mission doesn't go as planned and he becomes involved in a blood feud, but this leads him to the secret...