Memorable Features of Dungeon Level Three

d12
1. Grand promenade of the prehuman city: cave tenements, former domain of the subhumans, now housing for cult fanatics awaiting the arrival of their terrible deity
2. Ambient whirring from below as of a great engine pushed to its maximum exertion
3. Anti-subhuman traps around perimeter: tripwire activated catapults loaded w/nails and glass
4. Forum of the prehumans now used by cultists' for public execution of heretics, captured enemies (especially numerous: albino mermen)
5. Deep dwarfs under contract to excavate new vaulted chamber to house cult deity, will disallow any attempt to observe their work in progress
6. Scientific installation of the prehumans, refitted for sorcery by the cult high priests: perpetual contact with deity established via huge half-magic communication device
7. Howling chasm houses large hive of chaos flies, rapidly multiplying and growing more bold in their choice of prey
8. Witch subsect of cult finds current leadership sub par, schemes dubious: planning assassinations, looking to hire
9. Foulflow River enters several sections of level, currently alive with aggressive giant phagocytes, harvested as protein source by subhumans, cultists, and several species of subterranean monster
10. Natural caverns gradually descend to level four, former game preserve of the prehuman civilization, still haunted by myriad horrors from the unguessed past
11. Giant river monster like a fetal bird that projects beams of terror from its unopened eyes
12. Deep dwarfs carving out new underworld byway breach gas filled chamber, releasing from stasis horde of headless naked man-creatures with two-handed swords and little regard for their own safety