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ID: 3576

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January 16, 2007, 11:19 pm

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Tsithca’ca’dss, the Trench Dwellers

By:

Legends even to the merfolk, the reclusive Trench Dwellers are a race alien and strange beyond human reckoning.

In the deepest of seas, far below the sun-brightened waters of the continental shelves, lingers the remnant of a once-mighty empire.  Long before the coming of the wise and cruel meremenne, before even the madness-worshipping Batrakhones were found in the seas, the Tsithca’ca’dss, the “Trench Dwellers”, crafted labyrinthine cities and incomprehensible citadels miles below the ocean’s surface.  Many of their ancient cities have vanished, lost below the silt of thousands of years, but a handful of sites remain.  Within these lightless metropoli, the forgotten lords of the deepest seas live on, their tripartite minds lost in contemplations too alien for human understanding.

Description
The Tsithca’ca’dss are a physically small species, most closely resembling a spined trilobite or horseshoe crab.  Growing to approximately two to three feet in length, they have intricately articulated shells with several small spines growing from each of the thoracic segments.  The underside of each segment has small clawed limbs; the front pairs capable of quite fine manipulation.  Their mandibles, hidden beneath the carapace, are also used for grasping or shaping objects.

The heads of the creatures have several feathery growths that protrude from small orifices in the shell.  These “feathers” tremendously improve the Trench Dwellers’ ability to hear.  Delicate sensory organs, the “feathers” are necessary for the creature to communicate effectively with the others in its triad (see below), but can be withdrawn into the shell instantly if the creature feels threatened. 

Tsithca’ca’dss are totally blind, depending on highly developed hearing and an acute sense of smell to perceive the undersea world around them.  Each Tsithca’ca’dss constantly emits a soft susurrus of sound, clicking and sighing from a highly-developed vocal organ just above the mouthparts.  Their hearing is acute enough that they are able to precisely locate objects near them, displaying a bat-like sonar sense.  Because of their vocal abilities and acute hearing, they are often able to communicate verbally with other species, but find doing so very unpleasant.  The random sounds and movements given off by other creatures drive Tsithca’ca’dss to distraction, and few are able to share an area with other races for long without being driven to fury by their annoying noises.  The noise generated by others of their kind is often comforting to them, so they prefer to congregate in large numbers.

Because of their sensitivity to sound, the Trench Dwellers eliminate any random, uncontrolled noise from their environment.  While their cities are filled with items that emit various incomprehensible sounds, each is carefully designed and placed to shape its acoustical properties.  The few remaining war machines of the Tsithca’ca’dss are eerily silent as they move through the water, and their functioning organic devices only emit sound if they were designed to do so. 

The Triad Minds
Tsithca’ca’dss are unique among races in having a tripartate group mind.  Triads of these strange intelligences bond together soon after hatching, remaining together mentally through the creatures’ lifespan.  Their shared thoughts are communicated through sound, with each triad member adopting a different portion of the collective creature’s personality and memories.  While they are capable of reasoning independently if separated, they strongly prefer to remain within a few feet of each other.  The strange noises constantly emitted by these creatures are “thoughts” being shared between triad members.  This is one of the other reasons why Trench Dwellers find random sounds disturbing; the noises interfere with their ability to “think” at each other, causing serious discomfort.  The presence of others of their kind does not have this unfortunate effect; instead, they often find such company comforting.

If one of the triad is destroyed, its two mind-partners generally pine away soon afterward.  These damaged triads often display reckless and insane behavior while wasting away, so damaged triads are often destroyed to prevent them from disturbing or injuring those near them.

Trench Dwellers apparently cease aging once they reach maturity (a process that requires only a few years).  They remain physically the same, but as they accumulate memories, they undergo a gradual process of mental confusion.  Over the course of hundreds or even thousands of years, they become more and more introspective and uncaring.  Eventually they become virtually cataleptic, unwilling to move even to feed themselves or react to stimuli.  These dormant organisms can survive for hundreds of years, their minimal food requirements taken care of by autonomic processes that filter nutrients from the water around them.  As long as they are not buried in silt or debris from their decaying cities, these torpid dreamers seem to linger indefinitely.

In the surviving citadels and outposts of the Trench Dwellers, vast galleries of dormant Tsithca’ca’dss can be found, shepherded carefully by “Acanthids”, spiny, biomechanical guardians they devised thousands of years ago, when their empire flourished in the unseen depths.  These massive constructs are not only formidable battle machines, they are able to release a potent chemical stimulant into the water, one able to awaken even the most jaded dreamers from their catalepsy.  The awakened creatures are often very angry, so the defensive machines will only disturb them if their dim mechorganic minds determine that the dreamers face imminent danger.

“Content Sounds”: The Society of the Trench Dwellers
When their hidden empires flourished, Tsithca’ca’dss had an extremely convoluted social structure, dominated alternately by the technical and philosophical castes.  It was in this period that the Trench Dwellers’ cities were constructed, vast monuments to the technical abilities of the race.  In a sort of racial “conspicuous consumption”, they built cyclopean halls and tunnels and filled these with intricate machines designed to make them ideally comfortable for their strange inhabitants. 

A species with dozens of overlapping technical, philosophical and laboring castes, the Trench Dwellers seldom had social systems that surface dwellers would understand:  One moment, the leadership of their people might devolve upon the youngest members of the warlike Militant Philosophic caste, then without apparent reason, more sedate members of the Chamber Builders caste would be in command.  These changes were communicated through sound cues incomprehensible to other races, as the background noise of “content” Trench Dwellers would empower one set of leaders, while “angry” noise or “frustrated” noise would cause others to assume leadership.

Since the decline of their civilization, the remaining Trench Dwellers have a wide variety of social patterns, most of which are incomprehensible to other species.  Cities and colonies that retain few active Tsithca’ca’dss often have simple hierarchical structures dominated by the Shelter Shaper caste.  The top social priority of these creatures is the protection of their colony’s dormant members; they will support extensive defensive measures intended to ensure that dormant Trench Dwellers are not molested.

The handful of colonies that have fewer dormant members may display a more vigorous approach, developing trade with the less advanced races nearer the surface.  Most of these colonies have been decimated by disease or mishap, and require materials and assistance to restore their ancient equilibrium.

Appetites of the Trench Dwellers
Trench Dwellers are hardy little creatures, able to survive both the frigid temperatures of the ocean’s depths and the brutal conditions near the sea floor’s volcanic vents.  Omnivorous scavengers, they can subsist on a wide variety of foodstuffs.  Given their choice, their normal diet is made up of D’ca’kh’he, a variety of sponge-like undersea fungus that grows well in the depths they prefer.  They supplement this with any plant or animal matter that becomes available.  While they are not averse to devouring the remains of other sentient life, they do not seek out such food.

In addition to their regular diet, the Tsithca’ca’dss retain vestigial organs for “filter feeding” on plankton or similar aquatic microorganisms.  While they are able to subsist on this meager diet indefinitely, this ordinarily provides only enough nourishment for them to remain in a torpid, inactive state.  Active Trench Dwellers require a more varied diet to maintain their health.

The Trench Dwellers’ “Farms”
In some areas, Tsithca’ca’dss established vast undersea “farms”, where they cultivated animals and plants suited to the depth of the farm.  Farms in the black depths would yield large amounts of the slimy D’ca’kh’he fungus, while those in more shallow waters might cultivate plants.  Trench Dweller farms near the surface were normally tended by bizarre insectiod biomechanisms, in order to minimize the number of Trench Dwellers forced to dwell near the surface.  Since the decline of the Trench Dwellers’ culture, most of their farms in shallow depths have been abandoned, while others have been taken over by other aquatic races.  These creatures often give tribute to the unseen dwellers in the depths, dumping large amounts of food and usable waste into the trenches in exchange for the assistance of those ancient cultivation biomechanisms that remain.  This system generally benefits both species, as the Tsithca’ca’dss are able to use many materials that other species would regard as waste.  What they can’t eat themselves goes to fertilize their fungal fields.

Treasures of the Tsithca’ca’dss
While the Trench Dellers are a withdrawn race, often avoiding contact with other species, they are not always opposed to occasional trade.  The unaging Tsithca’ca’dss often overtax the resources of their native trenches and are forced to gather foodstuffs from shallower regions.  While they prefer to do this via “farms” maintained by their strange biological automatons, they have sometimes established regular exchanges of metal tools or other items of their strange technology for food and fertile wastes.

The unusual bronze-like alloys of the Trench Dwellers are generally very durable, although they can prove brittle.  Resistant to corrosion in ocean waters, they eventually discolor to a greenish tinge.  Although they are resistant to damage, they are not indestructable;  misuse will break them in short order.  Surprisingly, ingestion of the filings produced when sharpening these tools can produce illness or even death:  The metal is quite toxic.

More conventional metals are also used by the Tsithca’ca’dss.  They are sometimes known to craft jewelry or other items from gold or platinum.  These items are invariably made for other species, as they do not value jewelry for its appearance.  Trench dwellers do occasionally adorn themselves with intricately crafted items; to surface dwellers, these could be described as intricate noisemakers made of material that resembles nothing more than hardened bird droppings.  What the Tsithca’ca’dss find appealing in these items is another mystery of the race.

The Trench Dwellers mastered numerous unique technologies in their heyday, many having to do with the manipulation of sound.  Other items crafted by these odd creatures included many devices designed to manipulate their environment, controlling the temperature, mineral content, and even pressure of the water in the ocean’s depths.  Brought nearer the surface, many of these devices operate erratically, if at all.  One disturbing capability of the trench dwellers was the technology to alter the creatures around them.  An example of one of these unnerving devices was a strange sheet of material resembling fungus-infected kelp, that when wrapped around a surface dweller would cling tightly and alter them over the course of several days to be well-adapted to the crushing depths of the ocean.

Trench Dwellers in the Campaign
How can these strange undersea dwellers be used within a game?  If you’re running an undersea fantasy game, they may come into conflict with the races dwelling on the continental shelves, who may be unprepared to descend into the midnight blackness of the depths.  Surface dwellers may also find their ships attacked by the war machines of the Trench Dwellers, if their fishing disrupts the farms of this alien species. 

Geological or magical disasters may force the Trench Dwellers to the surface, as their beloved cities in the depths are overcome by volcanic activity or destroyed by undersea earthquake.  Colonies of these strange insectiods may appear at the shoreline, begging for refuge in human-held waters after their ancient homeland is lost.

More often, the Trench Dwellers themselves will be a mysterious race remaining in the shadows, occasionally appearing as the source for strange technological or magical objects in the hands of other races.  Ruins of their ancient cities will surface after great catalysms, their odd machines will sputter to life when dragged ashore in fishermen’s nets, or they will be described as the legendary destroyers of other ancient peoples.

In a Futuristic Science-Fiction setting, they may appear as the hidden race dominating some watery world, that must be treated with to acquire their jealously guarded resources.  They may even appear in a modern-day game, as a hidden race responsible for the legendary technologies of places like Atlantis.



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Comments ( 25 )
Commenters gain extra XP from Author votes.

Voted Murometz
January 13, 2007, 21:00
0xp
Excellent. I now eagerly await the companion post.

A bewildering, mind-numbing race. The names, the ecology, the whole "sound thing", the catalepsies, all great.

The desired tone and vocabulary is achieved. A primal hopelessness of sorts.

Very atmospheric! HPL, meets Tekkumel, meets Wulfhere.
Voted Pariah
January 13, 2007, 21:27
0xp
It gets the "I wish I'd've thought of *that*" award at multiple points throughout.

Kudos.
Voted Cheka Man
January 13, 2007, 21:40
0xp
A truly alien race.
Voted CaptainPenguin
January 14, 2007, 2:17
0xp
I WANT THIS RACE TO MARRY ME
Wulfhere
January 14, 2007, 9:53
0xp
Can you handle three alien spouses, whispering, clicking, and complaining about how you snore?
Voted manfred
January 14, 2007, 5:22
0xp
Uhhhh... what Murometz said, but DARN!

Now this is a different aquatic race as it should be. Applause I have to say. Is there more where this came from?
Voted valadaar
January 14, 2007, 6:59
0xp
Wow! Nicely done!
Murometz
January 14, 2007, 12:39
0xp
I love the pseudo-science woven through the cthonic fantasy. These can be adapted to any world.

Bizarre!! Kudos Wulf. Yes, this an additional comment :)
Voted Ancient Gamer
January 14, 2007, 13:00
0xp
Uh.

They are okay.

Bonus points for originality and the dreamer part. I loved the mechanical guardians and the angry awakening.
4/5
Voted Scrasamax
January 14, 2007, 18:24
0xp
Well, I hate to do this, but there are some problems with it, but I'll start with the parts I liked. As mentioned above, almost gushingly so, it is very atmospheric. Nicely done. The concept is certainly unique, especially the triad social structure.

Now for the parts I'm not thrilled about. Being small creatures, blind, and unable to bear loud or persistant noises, how did they create any sort of advanced civilization to create those decaying cities and eeriely silent war machines? What changed them from what would nominally be a dynamic society into a psychologically crippled quasi-post apocalyptic squatters?

I feel like an explorer who has found a marvelous underwater ruin and then absurdly attributed it and it's construction to the marine life I found there, about like archeologists claiming that the acropolis was built by ancestors of the wild dogs found in Greece.
Wulfhere
January 14, 2007, 19:40
0xp
Fair enough. Thank you for the feedback (both positive and negative).

The Trench Dwellers' blindness isn't an issue, as they are adapted for a lightless, deep-sea environment. In their own environment, their sensitive hearing and intelligence allow them to function very effectively. They can tolerate noise if needed, but find uncontrolled noise irritating and unpleasant.

More significantly, how did their civilization fall apart like that? I pictured them growing decadent; first losing interest in the world outside their cities, then losing the ability to maintain the cities. Younger species supplanted their culture in contested areas, causing them to withdraw further into their isolation. As they grew more impotent to affect areas outside their strongholds, they responded with a sort of cultural nihilism, losing themselves in alien dreams.
Scrasamax
January 15, 2007, 1:12
0xp
Re-reading my comment, I don't think I made my main complaint clear. It was not how their civilzation fell apart, but how they created it to begin with. I am curious to know how they built things without tool-using appendages or large scale cooperation.
Wulfhere
January 15, 2007, 9:07
0xp
I revised their description to clarify that the clawed legs of the Trench Dwellers are capable of fine manipulation, and added a note to clarify that they are a social species that prefers to congregate in groups.
Voted MoonHunter
January 15, 2007, 1:48
0xp
Simply lovely. Nice description, good details, and useful infomation for all. Application of said critters might be an issue, but still a nice addition.

Two paws and a tail up.
Strolen
January 15, 2007, 21:32
0xp
I almost needed a dictionary reading the first paragraph of the description. ;)

Love the thought of the triad and instead of using the mental crutch they are a unit by constant communication.

I second Scras's question though now that I read both posts. Any tunnels/caverns they make probably wouldn't be much bigger than themselves. The long lived ones end up being stationary which defies the large cities that my vision dictates. Perhaps in the madness of age they begin their extreme effort in digging. I am searching for a reason behind it all though. What do they want, what do the hive minds talk about, what knowledge do they gain from only talking to themselves. Why bother digging if they don't need to. They eat through filtered water so the deeper they go the less the filtered water would have food in it. So why dig?

Love the idea how outside noise would offend them....but it is missing something substantial to me but I don't know what it is.

There is a great atmosphere in there and I want to be sucked into it....
Voted Ria Hawk
January 16, 2007, 1:21
0xp
I like them, they make sense as an aquatic civilization. Although I have to agree, they don't seem the type to build cities. Warrens yes, cities no. They don't need shelter, they get that by burrowing, if they use it at all, they don't have commerce to need markets, and they don't like other races (who give them headaches), so they don't need to offer hospitality to visitors. Now, I might could see them beautifying existing formations or warrens. In that case they just augment their surroundings.
manfred
January 16, 2007, 14:09
0xp
Perhaps their cities and their state of hibernation are connected. The fact that they don't need large cities for bare survival means nothing. If they can create something better, why wouldn't they?

Perhaps they have created THE perfect enviroment for life, work, or play, and then found themselves with having nothing at all to do... their cities, amazing catedrals of the best sound to indulge in, mechanisms that keep the nutrients in water on the right level, all threats eliminated, they have now nothing to do - and so they do nothing. In a way, they remind me of the Marcas. They have exactly what they wanted, and their civilization is now over as a result.
Voted Iain
January 16, 2007, 15:00
0xp
Excellent. I love the strangeness and true alienness of these creatures. I am like Manfred; I don't need to know more about these creatures in order to use them in the game - the PCs will interact rarely with them and are certainly unlikely to be able to find out more than what it is told here which is rich in its detail and sense of otherness.

I was thinking about how the PCs could interact with them and thought of the following:

1) Magic - always a copout but definitely a possibility in a high fantasy world. It should be extremely difficult if possible.

2) Perhaps the merfolk bring a trench-folk artefact to the PCs and ask them what it is. It will be utterly alien to anything they or any others have seen before.

3) My favourite. A ship carrying the vital McGuffin, essential to the saving of the world/continent/nation has sunk in a storm, falling into a deep ocean trench. The PCs, via the intermediary of the merfolk, must persuade the trench-folk to return the McGuffin to the surface. The merfolk have no reason to like either surface dwellers or trench-folk and will have to be persuaded to cooperate. They may try to seize the McGuffin for themselves.

In addition, the PCs will have to learn enough about the totally alien society and culture of the trench-folk (via the merfolk - Chinese whispers with much potential for misunderstanding) in order to negotiate with them and try to persuade them to give up the artefact. If the trench-folk learn of its powers would they not wish to keep it? What could surface dwellers possibly offer such a deep-dwelling race in trade? To complicate things still further, perhaps the sinking ship landed on part of a trench-folk city causing great destruction and many deaths; they see it as a hostile attach and will be most unwilling to believe it was an accident.
Wulfhere
January 16, 2007, 19:33
0xp
Updated: Again, I thank you all for the cogent feedback. I added a great deal about the diet and society of the Trench Dwellers to answer the questions raised by various comments. Some questions will be answered in the other posts in the set, as time permits.
manfred
January 17, 2007, 2:34
0xp
A great update I must say! Their society is becoming alive a little more.
Wulfhere
January 17, 2007, 20:53
0xp
It actually bugs me to clarify these details. Part of the idea that I was trying to present was that they are alien and incomprehensible in many ways; unfortunately, explaining their culture and lifestyle makes them less mysterious.
Murometz
January 17, 2007, 20:55
0xp
Thats exactly what I meant by my comment in the relics post! Alien and incomprehensible, damn it! C'mon people!

Feeeeel them, dont try to understand them!

Could you imagine the following excahnge at the book fair?

Fan: "Love it Howie (HPL), but hmm, the science of this one you call Shub-Niggurath is a bit off me'thinks.

Howie: O_o
valadaar
January 18, 2007, 7:54
0xp
As another wild option for a campain, how about one where the PCs are from a marine race and the entire campaign is set below the waves (for the most part)?

This opens the field up for more interesting denzens for under the sea, in the darks where no sun reaches.
Cheka Man
October 7, 2007, 19:41
0xp
What if the PCs had to rescue one of these things from a merfolk torture chamber?
Voted Moonlake
February 23, 2011, 16:40
0xp

A well-written unique undersea race. I thought it's appropriate to HoH this in light of the most recent quest.



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Small village tavern specialty of the house is fresh cow blood mixed with milk. For each order they go out back and actually draw blood from a cow by puncturing a vein in it's neck. Fresh blood brought to the table where they poor milk into the glass of blood in front of the customer so they know how much blood they are getting.

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