The stronghold seemed to be a maze of endless stone corridors, punctuated by the occasional giant room with towering ceilings. Everything was arched, fitted columns sweeping overhead, reminding me of a medieval cathedral. What few windows we encountered showed a barren landscape, the sky that same dark cloud cover I'd first seen, uniform and dull, as bleak as the browned earth, empty and flat of vegetation or anything else living for what looked like miles.

The stronghold ...