As Barly lights the torch you see several of the plants nearby react. Some retract and close their flowers, others open up pods or begin producing thorns. The elemental reaches over and snuffs the torch shaking its head. As the gloom returns it takes a bit longer to see as the plants are slow to begin glowing and it takes a while for your eyes to re-adjust.
Rhidon can see normally but Vaun and Barley have disadvantage on any rolls to see/discover thing that rely on sight.
The elemental shoves open the door and enters the room but then returns and turns south. Looking in Rhidon can see a door on the east way that has long been grown over sealing it shut by roots over a foot thick. Again he hears the sound of something scrambling away into the deeper darkness of the tree/building.
The southern door is made of stone and also requires the elemental to force it open to reveal another dimly lit room covered in roots, moss, and fungi. Sliding over the rough floor the elemental crosses to the far SE corner and through a doorway partially blocked by vines, roots, and branches. It easily slides through and around the plants tangle but you are forced to stop and hack your way through. As you do so Rhidon pauses for a moment staring into the next room confused at the glimpse of a face staring back at him from the gloom beyond but it quickly vanished.
Another room and then another. But this one has a floor that is smooth with tilework creating a mosaic picture that is oddly clear of any plant growth or detritus.
The elemental pauses at the clear tiles then moves across the tiles. However as it moves through the middle of the mosaic you hear a pop sound from above then a splashing sound as you see what looks like a rain of seeds the size of your fist fall into the elemental and the floor around it. Almost instantly the seeds within the elemental alls spout and begins growing inside of it and within it. The twisting sprouts begin binding together and the elementals movement slows.