Insect warren from Everly's world, the comparison she uses for the eighth floor's descending maze of holes.
Cavern wasps build labyrinthine nests that tunnel ever downward, and Everly reaches for that image to describe The Eighth Floor: thousands of round holes of varying sizes hidden in the grass, each leading to a different area, "ever going down and down like the labyrinth of a cavern wasp colony."
The reference is a small window onto the natural world of The Sward that the mantises came from, and a reminder that the dungeon's architecture is built to echo a crawler's home biology back at them.
A deep, branching insect warren of tunnels descending level after level.
Native fauna reference that frames how the eighth floor's hole warren is organized.