Beneath Vel'Nathar

Beneath Vel'Nathar lies an extensive part of the Murmuring Depths, a vast network of caverns, rivers, chasms, roads, and inhabited regions that continues far beyond the island. Some routes eventually connect with systems beneath mainland Ethelra, though such journeys can take weeks.

Surface geography offers only a rough guide to what lies below. Mountains and waterways influence the stone beneath them, but underground routes rarely follow the borders or distances seen above. Two places separated by only a few miles on the surface may require a long underground journey if cliffs, flooded passages, or collapsed galleries lie between them.

The character of the Depths changes gradually with descent. Dwarven workings and natural cave systems are common through many of the upper approaches. Thal'Ruun communities occupy much of the better-known inhabited country below them, while Vroth'Kari roads become increasingly important farther down. Large cavern basins in the deeper regions support Threzkathar settlements and holdings.

These are broad patterns rather than separate layers. Caverns rise and fall across enormous distances, roads bypass one another, and isolated communities can be found at many different depths.

Most of the Murmuring Depths remain uninhabited. Cities and productive caverns are separated by long stretches of stone, water, broken terrain, and wilderness where permanent settlement offers little advantage.

Landscape of the Depths

The scale of the Murmuring Depths changes constantly.

Some passages are barely wide enough for travelers to move through in single file. Others open into galleries large enough for roads before emerging into cavern basins whose floors contain rivers, settlements, farmland, and cliffs of their own.

Travel is rarely horizontal for long. Roads may climb along cavern walls, descend through carved passages, cross fissures, or circle around terrain that cannot be crossed directly.

As a result, distance underground is measured as much by the route as by the space between two locations.

The great inhabited basins are only part of this landscape. Much of the country between them consists of ordinary stone passages, dry chambers, old collapses, and isolated waterways with little permanent habitation.

Rootlands

Rootlands form where surface vegetation sends large root systems deep enough to reach underground caverns.

Most are ordinary ecological systems. Roots bring organic material and moisture into environments that might otherwise support relatively little life, allowing fungi and other subterranean organisms to establish themselves around them.

The rootlands associated with Great Trees are considerably larger.

Beneath Mistglen, the roots of Faelar'dor descend into the Murmuring Depths as Thalradir, around which the Thal'Ruun settlement of Thalvethar developed. The oldest living roots produce an emerald-silver light, and a low resonance can sometimes be felt through the surrounding stone.

Farther south, the roots of Ashal'ardor descend beneath Lunebrook into the caverns around Ashal'tharil. Their light is paler, tending toward silver and blue-white, and the surrounding caverns are wetter from water filtering down through the forest above.

Great Tree rootlands are among the most productive environments beneath Vel'Nathar. Their roots introduce water and organic material into the surrounding caverns, supporting dense subterranean ecosystems and permanent settlement.

Fungal Caverns and Agriculture

Fungi are central to life below, though subterranean agriculture extends well beyond them.

Natural fungal beds develop wherever moisture and organic matter accumulate. Settled communities cultivate these environments deliberately and also maintain crops adapted to extremely weak light, often in association with fungal growth around their roots.

Productive agricultural caverns depend on careful management of water, soil, organic waste, and whatever material enters from roots or waterways above.

Some communities maintain large growing terraces around streams and reservoirs. Others farm smaller plots distributed through several connected caverns.

Agricultural productivity varies sharply from one region to another. A large settlement may depend upon several productive caverns nearby, while the roads connecting them cross miles of stone capable of supporting little food of its own.

Fungi also provide materials used outside agriculture. Some are cultivated for structural use, fuel, fermentation, or low biological light.

Rivers and Lakes

Water is one of the strongest influences on permanent settlement.

Rain and snowmelt enter the Depths through fissures and porous stone before gathering into springs, underground rivers, and lakes. Their courses are often difficult to predict from the surface.

A river may disappear beneath stone, divide into inaccessible channels, or descend through a shaft before emerging far away in another cavern system.

The larger waterways support fisheries, irrigation, transport, and settlements built along their banks. Some rivers are broad enough for boats and barges, while others are broken by rapids or falls and can only be used along short stretches.

Kuo-Toa communities are frequently found around rivers, lakes, and flooded passages. Some maintain ferries or fishing settlements along important waterways, while others remain isolated from the larger road networks.

Mineral and Geothermal Regions

Large stretches of the Murmuring Depths support relatively little biological growth.

These regions may still attract mines or permanent work sites when valuable mineral deposits make the difficult conditions worthwhile. Dwarven workings beneath the Greyspires extend through many such systems, and other peoples maintain mines farther below.

Galarium is encountered in some deeper veins and older workings, though deposits large enough to justify sustained extraction remain significant.

Geothermal regions create different opportunities. Hot springs, heated stone, and steam can support settlements or industry where the ground remains stable enough to build safely.

Other geothermal systems are simply too hot or unstable for regular habitation.

Life Below

The wildlife of the Murmuring Depths varies widely between cavern systems.

Many species are small and adapted to darkness, limited food, and long periods within enclosed environments. Permanent settlements depend more heavily on a smaller number of domesticated animals suited to underground life.

Deep Rothé are the principal large livestock animal maintained by many Thal'Ruun communities. They provide food, wool, hides, and other useful materials where enough fodder can be produced to support them.

Cavern Swine are also common around agricultural settlements. Their oldest Thal'Ruun lines are believed to descend from domestic pigs carried below by the ancestors of the Elaren Enclave and adapted through generations of subterranean husbandry.

Giant Lizards become more familiar along the deeper Vroth'Kari and Threzkathar road networks. Their ability to handle steep stone and uneven ground makes them valuable as pack and hauling animals.

Vroth'Kari settlements also raise several kinds of large beetle, particularly where agricultural waste and fungal material can be put to use.

Far from inhabited routes, much larger predators remain a danger.

Purple Worms are exceptionally rare, but their passage can alter the landscape itself. A worm may destroy an established road or open a new tunnel through stone. Old worm passages sometimes remain usable long after the creature has moved elsewhere.

Travel and Hazards

Travel through the Murmuring Depths depends heavily on preparation and local knowledge.

Water is abundant in some regions and scarce in others. Even where it is easy to find, mineral contamination, stagnant pools, mine runoff, or biological waste can make a source unsafe.

Flooding presents another danger, particularly in upper systems affected by surface rain or snowmelt. Deeper waterways can also change course after collapses or shifts in the surrounding stone.

Outside maintained roads, unstable ground remains a constant concern. Rockfalls and damaged ledges can make an old route impassable, while a collapsed passage may force travelers into an entirely different cavern system.

Navigation is complicated by the vertical structure of the Depths. A wrong turn may leave travelers far above or below the road they intended to follow.

Road markers, bridges, ferries, and experienced guides therefore remain important even to people who have lived underground all their lives.

Old Roads and Ruins

The Murmuring Depths contain evidence of habitation far beyond the settlements occupied today.

Old roads, abandoned mines, ruined settlements, and damaged infrastructure appear throughout the region. Some lie close to modern routes, while others have been isolated for centuries.

Their abandonment usually has ordinary causes. Mines were exhausted, rivers moved, trade routes changed, or settlements became too expensive to maintain. Disease and conflict emptied others. The Upheaval destroyed many more.

The environment gradually reclaims these places. Roots enter old chambers, fungal growth spreads across abandoned structures, and water follows drains and channels that are no longer maintained.

Beneath Bleakthorn, the modern underground ecology reflects centuries of change on the surface. Water filtering through dense woodland and former farmland carries tannins and organic material into the caverns below, supporting root-heavy and decomposer-rich environments unlike those beneath much of the rest of Vel'Nathar.

Some ruins are harder to identify. Too little may survive to establish who built them, or the surrounding roads may have changed so thoroughly that their original place within the region is no longer clear.

The Upper Reaches

The upper Murmuring Depths beneath Vel'Nathar have the strongest connections with the surface.

Natural caves descend from forests and mountain valleys, while dwarven excavation has opened additional routes beneath the Greyspires. Parts of the Kazdruk-Varn intersect natural cavern systems at numerous points.

Some of these connections remain active. Others were sealed when mines flooded, became unstable, or ceased to be useful.

Whispering Hollow is among the better-known natural descents through the Greyspires. Surface explorers and dwarven prospectors have mapped portions of its upper reaches, though the system extends far beyond the areas regularly travelled from above.

Thal'Ruun settlements are most common through these upper and middle regions where dependable water and productive biological systems allow permanent communities to develop.

Thalvethar

Thalvethar lies beneath Mistglen and is one of the largest Thal'Ruun settlements beneath Vel'Nathar.

The community developed around Thalradir, the immense living root system descending from Faelar'dor.

The Thal'Ruun did not create Thalradir. Their ancestors discovered the roots after settling in the Murmuring Depths, and generations of building gradually shaped the settlement around them.

The oldest roots and heartwood give off an emerald-silver light. A faint resonance also passes through parts of the root system and surrounding stone.

Thalvethar was built to accommodate the living roots rather than cut through them. Roads and terraces follow the available stone around the largest growth, while agricultural caverns extend into the surrounding underground country.

Thalradir has considerable historical and religious importance to the settlement.

Through specialized Rootsong rites, trained Rootchanters can preserve selected memories and records within suitable portions of the living root. These records supplement written archives and oral history.

Thalvethar is governed by a Council of Elders and protected by the Root Guard, which oversees local security and the routes surrounding the settlement.

The community is also maintained as a Thornvault, with responsibility for protecting Thalradir and the records preserved within it.

Narethil

Narethil lies east and southeast of Thalvethar beneath the transition between the Northern Highlands and northern Eastmarch.

Several underground waterways meet in the surrounding caverns, making the area unusually well suited to agriculture.

Cultivated terraces and managed water systems extend through much of the surrounding country, allowing Narethil to support a large permanent population and substantial food production.

The settlement trades regularly with neighboring Thal'Ruun communities and is one of the major agricultural centers beneath Vel'Nathar.

Its importance comes largely from location, dependable water, and generations of successful cultivation.

Oruveth

Oruveth lies beneath the eastern Greyspires where several important underground routes meet.

Roads lead toward Thalvethar and Narethil, south toward the caverns beneath Lunebrook, upward toward dwarven workings, and deeper into the Vroth'Kari road network.

Trade shaped the settlement from an early stage.

Oruveth receives more regular traffic from other peoples than most Thal'Ruun communities beneath Vel'Nathar. Vroth'Kari merchants are common enough to be familiar, while dwarves, Myconids, and traders carrying goods from farther below also pass through its markets.

Giant Lizards used along the deeper roads are a common sight around the caravan districts.

The permanent population remains predominantly Thal'Ruun, but Oruveth is one of the principal places where the cultures of the upper and deeper Murmuring Depths meet in everyday life.

Ashal'tharil

Ashal'tharil lies beneath Lunebrook and is built around portions of Ashal'ardor's deep root system.

Water filtering down from the forest feeds the roots and creates a network of damp caverns, streams, and pools around them.

The living roots produce a pale silver to blue-white light that gives the surrounding caverns a character distinct from Thalradir.

A permanent Thal'Ruun community has grown around the roots over generations, using raised paths and bridges to move between the wetter parts of the cavern system.

Ashal'tharil is maintained as a Thornvault because protecting Ashal'ardor's roots has remained one of its central responsibilities.

Its inhabitants know that the roots belong to a Great Tree on the surface and know Ashal'ardor by name, though most have never seen Lunebrook.

Contact with the Circle of Lunebrook has occurred at different periods of history, but no permanent public route links the two communities.

Dorelith

Dorelith lies beneath the Greenheath Hills near the southern edge of Bleakthorn.

The modern settlement occupies a different part of its cavern system from the community that stood there before the Upheaval.

Fault movement damaged older passages and altered the local waterways. As the dependable sources of water shifted, much of the population gradually moved into a more sustainable part of the same underground region.

The present settlement relies on a mixture of cultivation, fishing, gathering, and livestock, though it produces less surplus than Narethil.

Water entering from the Bleakthorn side of the surrounding country carries tannins and organic debris from the woodland above. Upper passages in this area can therefore contain dark seepage, dense roots, and heavy decomposer growth.

Parts of the old settlement remain accessible and are still used when useful. Other chambers were abandoned completely.

Dorelith's history has encouraged a practical approach to stewardship. A farm, road, or settlement may be left behind when maintaining it costs more than the surrounding environment can support.

The Deep Roads

Below the principal Thal'Ruun settlements, the maintained road network becomes increasingly associated with the Vroth'Kari.

Their routes combine natural cavern systems with extensive stonework. Roads cross fissures, follow engineered galleries, and connect settlements spread across difficult terrain.

The Vroth'Kari make greater use of steep and vertical routes than many surface peoples, reflecting both the landscape and their natural climbing ability.

Agriculture remains concentrated around settlements and dependable water rather than spreading continuously along the road network.

Giant Lizards are familiar working animals throughout these deeper routes, while cultivated beetles are common around many Vroth'Kari agricultural districts.

Oruveth provides one of the principal Thal'Ruun connections into this network.

Zharvek

Zharvek is the largest known Vroth'Kari city beneath Vel'Nathar.

It lies deep below the Greyspire and northern-central regions, considerably beneath the principal dwarven workings and most major Thal'Ruun settlements.

The city occupies several connected caverns rather than a single vast chamber. Its oldest districts developed around dependable water, with later construction extending along the major roads into neighboring basins.

Stone forms the foundation of most construction.

Processed Vroth'Kari resin is used throughout Zharvek to seal joints, reinforce repairs, line water systems, and create lighter secondary structures. Older districts show generations of alteration and repair, while newer areas tend to be more carefully finished.

Water management is central to the city. Reservoirs, drainage systems, and agricultural caverns support a population large enough to make Zharvek one of the principal centers of the inhabited Depths beneath Vel'Nathar.

Giant Lizards are common around caravan roads and freight districts, while cultivated beetles play an important role in some farming areas.

Zharvek also serves as a major trading point between the upper and lower Depths. Goods from Thal'Ruun settlements and dwarven communities move through its markets alongside materials carried upward from the deeper regions.

Some of the lower routes extending from the city are restricted or poorly understood outside Vroth'Kari authorities. Closures are usually attributed to unstable ground, damaged works, or dangerous conditions farther below.

The Lower Cavern Basins

East and southeast of Zharvek, the Murmuring Depths broaden into large basins where dependable water and cultivable ground support substantial settlement.

Rivers cross some of these cavern floors, allowing irrigation and agriculture on a scale difficult to maintain elsewhere below Vel'Nathar.

Much of this country falls within the influence of Threzkathar city-states and their Great Houses.

Their holdings follow useful roads, waterways, mines, agricultural caverns, and settlements rather than forming clean territorial borders.

A single journey may therefore pass through the influence of several Houses, whose relationships can range from cooperation to open conflict.

Keshrath

Keshrath is the principal known Threzkathar city beneath Vel'Nathar and one of the westernmost major centers of their civilization.

It occupies a vast lower cavern basin east and southeast of the deeper routes leading toward Zharvek.

A major subterranean river crosses part of the basin and supports the city's water supply, agriculture, transport, and surrounding settlements.

Keshrath is densely built. Districts occupy the cavern floor as well as terraces and large shelves of stone rising along the walls. Roads, stairs, bridges, and galleries connect the different levels.

Local stone forms most ordinary construction.

Silk is widely used throughout the city for clothing, screens, awnings, cables, and other practical purposes, while wealthier districts make greater use of imported and decorative materials.

The surrounding basin supports enough agriculture and water access to sustain a large population.

Spiders have considerable cultural importance among the Threzkathar and appear frequently in their art, symbolism, and traditions.

Six Great Houses currently dominate the highest council in Keshrath, though much of the city's population belongs to lesser Houses or stands outside that hierarchy entirely.

Slavery remains legal and economically important. This has produced long-standing tension with several neighboring peoples, even where regular trade continues.

Keshrath is an important western Threzkathar city-state rather than the center of their entire civilization. Roads continuing east eventually connect with much larger Threzkathar populations beneath mainland Ethelra.

Smaller Communities

The Thal'Ruun, Vroth'Kari, and Threzkathar are the largest established peoples beneath Vel'Nathar, but they are far from the only inhabitants of the Murmuring Depths.

Myconid colonies occupy productive fungal regions, while Kuo-Toa communities are common around suitable waterways. Grimlock enclaves and smaller settlements of other peoples can be found away from the major cities and roads.

Relations vary from regular trade to deliberate isolation.

Control of a useful crossing, water source, cavern entrance, or stretch of river can give a relatively small community importance far beyond its population.

Trade and Travel

Trade links much of the inhabited Murmuring Depths despite the difficulty of moving goods through the region.

No single people controls movement between the upper and lower caverns.

Individual roads, bridges, ferries, and cavern junctions can therefore become important enough to shape settlement and politics around them.

Transport changes according to terrain. Broad maintained roads allow carts and pack animals, while navigable waterways carry boats and barges. Giant Lizards become increasingly common along the deeper road networks.

Local knowledge remains essential.

A route that once took several days may become unusable after flooding or collapse, while a newly opened passage can shift trade toward communities that were previously peripheral.

Away from maintained roads, travel becomes much slower and less predictable.

The Upheaval

The Upheaval permanently changed the Murmuring Depths beneath Vel'Nathar.

Faults shifted, tunnels collapsed, and underground rivers changed course. Some settlements flooded while others lost the water systems that had sustained them.

Sections of the Kazdruk-Varn beneath the Greyspires were destroyed or isolated. Deeper road networks also suffered damage, and several communities had to establish new routes through the altered terrain.

The ecological effects differed from one cavern system to another. New waterways entered some regions while others dried. Roots spread into abandoned spaces, and productive growth established itself where the new conditions allowed it.

More than seven centuries have passed since those changes.

The modern Murmuring Depths are not a landscape still waiting to recover from the Upheaval. Communities rebuilt, replacement roads became established, and new settlements developed around waterways and caverns that did not exist before the disaster.

Most people living below Vel'Nathar today know this altered geography as the ordinary world around them.

Older traces remain widespread. Abandoned roads disappear into collapsed passages, dry channels mark former rivers, and ruined structures survive beneath lakes created when water changed course.

Pre-Upheaval maps are still useful to historians and explorers, though relying upon them without modern knowledge can be dangerous.

The Lower Frontier

Permanent settlement becomes increasingly sparse below the principal Threzkathar territories and the lowest maintained Vroth'Kari roads.

Small stations and isolated settlements still exist, but reliable food and water become harder to find and the distances between inhabited places increase.

Some of the lowest known routes pass structures whose age and purpose remain uncertain.

Reinforced chambers, barriers, foundations, and sealed passages have been found built directly into the surrounding stone. Some appear to predate the surviving records of the peoples who now travel nearby.

Vroth'Kari authorities maintain several such sites and restrict access to others.

Their origins remain disputed, and most people living in the inhabited Depths have little reason to approach them.

The Hollow Dark

Beyond the lowest regularly travelled reaches of the Murmuring Depths lies what several peoples call the Hollow Dark.

Reliable accounts are scarce.

The name is generally used for regions beyond the established road networks where permanent settlement becomes rare and even experienced underground travelers seldom venture.

Stories describe immense fissures, unfamiliar creatures, and cavern systems unlike those of the inhabited Depths.

Some accounts also describe places where distance or direction becomes difficult to judge, or where the pull of the ground seems subtly wrong. Such stories remain difficult to verify and are often attributed to exhaustion, fear, or failed navigation.

The Vroth'Kari discourage travel through many known lower approaches. Thal'Ruun and Threzkathar traditions likewise treat the region with considerable caution.

Whether the Hollow Dark is simply a name for the least explored reaches beneath Eldareth or something stranger remains uncertain to most people who know of it.

For the inhabitants of the Murmuring Depths, that uncertainty rarely affects ordinary life.

The settled caverns beneath Vel'Nathar already cover an enormous region, and even experienced travelers generally know only a fraction of the roads, waterways, and wilderness below the island.