Legend:

Spells
Special Items
People
Monsters
Quests
UNDERGROUND RIVER
1. Zone - Icy Tunnels
13. Fire Pads under the entrances to this room. There is a Turret in this room
2. Part of the bridge is missing. You'll have to find another way around. 14.

Power Spiral.

3. Disable the power spiral in this room to turn off the fire pad in area 5. 6 cyrstals on table. Cabinet contains essence pods and 4 crystals. 15. Power Spiral. Cabinet contains shaper records.
4. Healing Pool and Essence Pool 16. Fire pad. Disable the power spiral in area 20 to turn them off.
5. Fire Pads. Turn off power spiral in area 3 to disable. If you can't disable them, go across in combat mode. You'll take less damage. 17.

Use the control panel to restore missing bridge span at area 2. There are also 2 power spirals here. But, it doesn't seem to be necessary to disable them.

6.

Living Tool on floor

18. Chest contains fine cloak and airshock crystal
7. Fire pads. 19. Chest contains living tool and 22 coins
8. Servant Mind Vendor sells a few exotic goods at ridiculously high prices. Utterly unhelpful otherwise. 20.

Cannister: Create Vlilsh +1. Disable the power spiral here to turn the fire pads in area 16 off.

9. 5 coins on table. Healing pod in pot. Cabinet contains 2 speed pods, 6 crystals, 4 Spray Crystals, and 4 Major Healing Pods 21. Venom Turret.
10. 2 power spirals. Disable fire pads at areas 12 and 13. Cabinet (Requies 10 Mech to open) contains reapers, splitting thorns, fiery wand, and steel javelins. 22. Zone - Eastern Mine
11. Curing Pod S. Suppression Turret
12. Fire Pads. B. Buring Turret