From the map I’d pulled up on the space dock, the surface dock was a big oval structure, built around the shaft. I walked out onto a long stone balcony, sand grating under my boots, about three stories off the ground looking out to the west. The sky was overcast with puffy gray clouds but the view was clear. I was looking at a lake, shallow and glassy, curving away from the looming wall of the dock. A wide causeway led off from the far side of the building, crossing the lake toward another set of three large structures maybe two kilometers away, a complex big enough to dwarf the dock.