The stillness of the waters was a deception. As was the deepness of the silence. It seemed as if inside of the lagoon - framed by the thick carcass of the rock walls forming a deep cave - the sound was only existent in a shape of footsteps, echoing through the close space, water drops, as the mass of the waters around sipped through even the thickest of stones - as all water does, knowing no time nor consistent shape to be locked in - and dripped down onto the rocky floors with same echoing sound. Scratches and bumps against these walls made by sloppy steps, or by inhabitants of this world. Light crumble of a few stones to crack and a few pieces of it to fall into the waters with a soft splash. It seemed like all these noises were framed by the deepest and calmest silence one could imagine - as if the absence of noise only accentuated each and only sound to make it more audible, more precise. 
It was a lie.

Listening closely, listening carefully, in an attempt to lift up the veil of this deception one would hear something beyond mere silence: a low humming drone, low frequencies barely to be made sense out of, but to be felt, to be touched by, once you would notice it - it was to remain in a shape of a soft touch, its deep humming was filled with whispers of no particular language, a voice of no particular shape: it was to remain on the very edge line of perception - impossible to grasp, understand, fleeing and evading attempts to hold it in mind and memory. It was a sound of [i][url=https://youtu.be/JZi1ap3Jbhk]presence[/url][/i] - a presence of something alive, and yet so massive it could not be simply tackled with any senses one is to have. It was a presence shaped in tension of one trying to push against it, it was there, something, or someone - it was not to be put in words; it only could be heard with one’s whole body. It was a presence of the waters, the tension of its pressure all around.
Or, it was a presence of what the waters were.

[url=https://i.imgur.com/g2PvOML.png]She[/url] felt and knew of that presence better than anyone. 
It was not obvious and clear when she appeared in that lagoon. The moment Tower travelers appeared in it, getting used to the surroundings and looking around - there was no sign of anyone alive - alive that is of a sentient life. Hunger driven crab, aiming to approach the travelers with an intent to eat was certainly not something to consider such. And yet. It was again a presence which spoke whispers of a shape roaming somewhere on the edge of a vision - an incomprehensible fleeting shade of a person, humanoid, anthropomorphic. Before that shape took form. 

She appeared as if out of nowhere: a glance around, a glance on a crab coming closer in its hunger, and the third time being the charm: here she was sitting on a rock, some distance away from the attacking monster, observing over with a pair of eyes gleaming like a pair of gems brightened up by the light mirroring in their edges. She looked like a mirage, something the darkness of the Abyss would just create in a reflection of the deep water, a shade of someone’s imagination; or someone who would appear woven out from the electric presence in the air, flickering with the hair long and blue somewhat swaying as if in order to make her stand out from this water soaked landscape of a lagoon; all while she was to sit still on place, looking like an idol of some old and forgotten religion dedicated to worshipping things which were not to have a face on their own. 

She was sitting, watching. Observing. Beside her sat another shadow, another mirage, another delusion casted or caused by some feverish mind: a [url=https://i.imgur.com/arl56Oy.png]samurai[/url] of a flash of long white hair contrasting with the dim black and grey of her clothes, - like in a dream, one could not actually remember the moment these two appeared; it was something to just pop up into existence in the moment of a blink, in a flash of a broken time. Yet there they were. 
She tilted her head lightly, her eyes locked still on the giant crab approaching the group of travelers as she spoke softly to her white-haired companion. Her voice is floaty and calming, lacking tone spikes, and with a soft cheerful resonance connecting the words spoken. Her lips even when she speaks are slightly shaped into a thin smile:

“[color=9e0039]Look at that. We have quite a party of guests here. Do you think they might need help, or..?[/color]”, she asked her companion while observing the crab coming closer and the actions which were to be taken by the travelers, “[color=9e0039]...Or could it be that they are quite capable themselves. hm? Quite intriguing.[/color]”

She said and pondered over the lagoon: the light here was a composition of various colors shifting in overlapping patterns as it was to create a scenery quite comfortable for eyes not used to the blinding darkness of the Abyss. A cold touch of the humid air where brushed through her and her companion's hair and clothes, creating a soft flapping sound.

“[color=9e0039]Either way, it is not very hospitable of us to rest here casually and not offer a helping hand for the travelers in a peril, right?[/color]”, she asked a question more rhetorical than anything, as she slowly stood up from the rock she was sitting on; a motion which somewhat made the unheard presence tense in response.