An addition to Saberhagen's long-standing series about the berserkers (Berserker Kill, 1993, etc.), smart machines whose programming directs them to roam the galaxy seeking out and destroying organic life--and especially ``badlife,'' those beings who attempt to resist extermination. This time, both sides have developed new wrinkles: The Solarians (Earth) have hacked a window into the berserker programming codes; in turn, the berserkers have developed androids convincing enough to pass for the human-created variety, and so a battle royal to decide Earth's fate is in prospect. Plenty of well-orchestrated maneuvers and action, not too much subtlety: This reliable formula should please the many berserker devotees.
