segment boundary
First appears in Book 4: Heaven’s River, chapter 25 (25. Trouble Follows)
Appearances
B1
B2
B3
B4
B5
What you know
Book 4: Heaven’s River
- Ch 25Segment boundaries are steep mountains with a shutter-like diaphragm that can seal a segment, the river passing through four straits.
Connections
- part oftopopolis