Orthe:

The distant world of Orthe is littered with spectacular remnants of the Golden Empire, an ancient and technologically advanced civilisation extinct for two thousand years. Now their Orthean descendants have turned away from the technology which nearly destroyed them, and from their ancestors, the Golden Witchbreed. Then Earth envoy Lynne de Lisle Christie arrives and, all too quickly, finds herself the victim of intrigue and conspiracy, embroiled in a conflict that threatens to explode into war - and which puts her own life in deadly peril ...