A Tengmaa bulb’s hide was tough for a reason - all of the plant’s digestive and nervous capacity was contained within that control centre. However, the plant’s evolutionary pathway evidently hadn’t prepared for a barrage of radiation, explosives and bullets. So when the bulb’s vulnerable innards were exposed under the water and promptly cut to shreds, the Tengmaa quickly lost control of its numerous appendages.
The first to go limp were the half dozen thick trunks which stretched all the way out into the sunlight, gradually tapering at the end. Next were the serpentine manipular vines coating every surface of the cave interior. Then, with nothing left to distract the invaders, the throbbing cilia inside the pool trap promptly died.
And with that, the Tengmaa bulb unmoored from the position it had held over the cave’s onward descent for decades. First came a sickly snapping noise as the struts supporting it detached. Then, with a sound like a giant toilet flushing, it disappeared into the large hole on which it had previously been sitting. This was how it had filtered waste water out of the chamber to stop it flooding before.
The water rushed over the rocks, disappearing down the waste chute after the bulb. The chamber was filled with this roaring sound for a while. This new opening also helped disperse some of the toxic particles from the room, though Tar still choked uncontrollably as she struggled to her feet and surveyed the area. Water was pouring in from the opening above their head and another gap along the wall from them (the other cave opening, most likely). It wasn’t enough to refill the bowl below them though, so it quickly emptied until just a few carcasses lodged in place remained.
Fanning her mandibles with one hand, Tar got up, walked to the edge and wordlessly jumped down into the barren bowl. Her energy sword’s pommel had fortunately gotten stuck in a crevice and hadn’t washed away, so she carefully picked it up. Looking up toward the ceiling and coughing lightly, Tar returned her lost sword to its mount on her back, with the other one.
She pointed upward, to the feeble shaft of light shining down on her from above. “I see the way up the mountain! I remember now - it is an invigorating climb.”