The Forbidden Borders trilogy, written by W. Michael Gear includes Requiem for the Conqueror, Relic of Empire, and Countermeasures.
Scottish Borders | trilogy | Forbidden City | Borders Group | Forbidden Planet | Reporters Without Borders | Sprawl trilogy | Mars trilogy | South Australian borders | Northern Territory borders | The Forbidden Kingdom | The Deptford Trilogy | Lyne, Scottish Borders | Forbidden Colours | Engineers Without Borders | Cardrona, Scottish Borders | Broughton, Scottish Borders | The Forbidden City | The Brentford Trilogy | Forbidden Zone | Forbidden City Concert Hall | An American Trilogy | Trilogy | The Nikopol Trilogy | ''The Lord of the Rings'' movie trilogy | The Glen, Scottish Borders | the Forbidden City | The Dark Elf Trilogy | ''Star Wars'' original trilogy | Ring Trilogy |