Crystal Keep

The Keep doesn't have gates. It doesn't need them. The walls are forty meters of solid crystal, grown not built, and they only let through what they decide to let through. Nobody has ever figured out the criteria. Nobody born inside has ever fully left.

Light behaves differently here. It bends through the crystal lattice and arrives somewhere other than expected — what hits the east wall at dawn shows up on the floor at noon. Residents develop an easy relationship with delay, with things arriving out of sequence. It shapes the way they think.

The Keep produces scholars, strategists, and a disproportionate number of people who are very difficult to surprise. They tend to be quiet in groups and devastating alone. Something about growing up surrounded by walls that see everything makes you very aware of what you reveal.