Three rivers feed a land where every harvest has a shadow.
DHDelta de Hydros
Overview
Delta de Hydros is a broad, fertile heartland province where the Axii, Keen, and Yard cross plains, wooded banks, low hills, and reed-filled marshes. Hundreds of villages and market communities cling to levees and waterways, their fortunes tied to harvests, ferries, and noble estates. High magic is part of daily life, but old ruins, dangerous forests, and sudden floods make prosperity uncertain. Barges connect the region, while muddy roads and rival tolls complicate travel.
Cultures
Noble-house customs shape landholding, marriages, and public ceremonies.
Woodland communities preserve older rites and practical knowledge of the forests.
Places
4 settlements
Large · Market townThree-Reed MarketTrade hubA crowded seasonal market where three ferry services meet near broad reed beds.
Large · Paired market townsJoined QuaysAdministrative and river-trade centerTwo former toll towns share docks, warehouses, and a council hall despite old rivalry.
Small · Levee villageLow LeveeAgricultural communityA farming village whose barrier needs constant repair after spring floods.
Small · Hill villageGreen StepsWoodland and arcane outpostA hill settlement built beside overgrown terraces and a site of unusual magical activity.
How they spread
PatternMost communities follow riverbanks, canals, and raised roads, with dense clusters around crossings and fertile bends. Smaller villages and isolated estates occupy forest margins and low hills.
Common kinds
Levee villages surrounded by farms.
Ferry towns at crossings and channel junctions.
Estate manors with dependent hamlets.
Market towns serving several river branches.
Trade routes
Axii barge route linking western farms to the central markets.
Keen channel route serving timber villages and ferry towns.
Yard grain route running through the southern floodplain.
Raised cart road connecting the upland edges to the river crossings.
Dangers and hooks
4 threats
Most dangerous · HighChannel WyrmsMonstrous predatorsThey nest in deep bends and strike boats during floods.
The Sunken RemnantHighArcane undead
An ancient presence stirs beneath the old channels and distorts nearby magic.
The Fen LightsModerateFey hazard
Strange lights appear across southern marsh paths, especially in fog.
Levee Road BanditsModerateCriminals
Small gangs ambush carts and isolated ferries along wooded stretches.
Hazards of the land
Seasonal floods can overtop levees and isolate whole villages.
Will-o'-wisps and other fey lights lure travelers into deep marshes.
Bandits target carts on wooded roads and isolated ferries.
Unstable magical currents distort spells near some buried ruins.
Plot hooks
1
The Levee That WhispersMysteryA village's protective flood charm has failed, and something beneath its levee is answering the water-mages.Starts: The party is hired at a riverside shrine after the first homes begin to sink.Reward: A local patron offers coin, lodging, and a charm that helps resist drowning.
2
Cargo Without a WakeInvestigationA barge carrying grain and an heirloom disappears between two recognized landings without leaving wreckage.Starts: A worried factor asks the party to search the Keen's wooded banks.Reward: The recovered cargo earns a share of the trade goods and a favor from the merchants.
3
The Tollhouse RoadCombatBandits are using an abandoned tollhouse as cover, but their newest captive claims to know a route into a buried ruin.Starts: A patrol recruits the party after finding an empty, overturned cart on the road.Reward: The rescued travelers provide payment and a map to a sealed ruin entrance.
4
An Island in DisputeSocialA family dispute over an island estate threatens to break the shared flood barriers before the rains arrive.Starts: The party is asked to carry evidence between rival manor houses and the village council.Reward: A land deed, a modest purse, or a noble introduction awaits a peaceful settlement.
The land
Climate and ground
ClimateTemperate, with mild wet seasons, warm summers, and frequent river fog.
TerrainA broad province of fertile riverlands, low hills, forest patches, and branching channels.
Biomes
Fertile floodplain and meadow.
Temperate mixed woodland.
Marsh and reed fen.
Low rolling hills.
Waters and borders
Waterways
The Axii runs through the western floodplains.
The Keen winds between market villages and wooded banks.
The Yard drains the southern farms into a maze of channels.
Minor canals link estates, mills, and ferry landings.
Borders
Low hills mark the northern edge.
A long wooded ridge separates the western marches.
The southern marshes fade into neighboring lowlands.
Eastern farmland gives way to upland roads.
On the road
Flood season can erase roads and strand travelers for days.
Barges are usually faster than carts, but shoals and tolls delay passage.
Creatures and bandits make wooded roads dangerous after dusk.
Landmarks
The Three Forks, where the Axii, Keen, and Yard draw close before separating.
The Sunken Mile, an old paved road visible beneath clear shallows.
The Bell Reeds, whose hollow stalks ring before sudden floods.
The Green Steps, ancient terraces half-buried in a forested slope.
Landforms
Wide alluvial plains threaded by old channels.
Low wooded hills along the province's margins.
Reed-choked marshes and shifting islands.
A patchwork of levees, oxbow lakes, and raised banks.
Resources
Deep, fertile silt and abundant freshwater fish.
Straight timber and boatbuilding wood.
River clay, reeds, and medicinal marsh plants.
Small deposits of arcane crystal near ancient channels.
Power
Rule
GovernmentA provincial council of noble houses shares authority with chartered market towns and customary village assemblies.
SeatA rotating council hall at Joined Quays serves as the province's administrative seat.
StabilityGenerally stable, but rival estates, toll disputes, and magical incidents strain cooperation.
Laws
River tolls must be posted publicly at recognized crossings.
Noble claims do not override customary village access to common wells.
Spellcasting that endangers a crowded market requires local permission.
Flood barriers and shared canals must be maintained by adjoining estates.
Factions
The Estate HousesNoble coalition
Influence: High in courts, land disputes, and local appointments.Keep the old family privileges intact while securing new acreage along the waterways.
The Three Current CompactRiver merchants' league
Influence: Strong along the Axii, Keen, and Yard.Maintain safe passage and fair tolls for barges and ferries.
The Reedward CircleArcane society
Influence: Moderate, with influence strongest around ruins and learned settlements.Contain dangerous magic and recover artifacts before they reach private collectors.
Faiths
The Current Mother
Influence: Widely practiced by boat crews and farming villages.River cycles, safe passage, and offerings made at bridges and ferries.
The Hearth Ledger
Influence: Strong among noble houses and their tenants.Ancestral duty, household continuity, and honorable stewardship of land.
The Green Quiet
Influence: Common near woodland edges and marsh settlements.Wild growth, hidden places, and respectful bargains with local spirits.
People and trade
Who lives here
How manyHigh along the rivers and fertile floodplains, with scattered hamlets in wooded uplands.
Main peoples
Noble families and their household retainers.
River farmers, fishers, and boat crews.
Craftsfolk and merchants in market settlements.
Other peoples
Woodland clans living near the forest margins.
Traveling mercenaries and itinerant spellcasters.
Languages
Hydran, the common river-trade tongue.
Noble Court Cant, used in formal contracts.
Old Reed, spoken in some marsh villages.
Trade
WealthProsperous overall, though wealth is concentrated among noble houses and major traders.
Work
Grain and vegetable farming.
Fishing, ferries, and river transport.
Timber, boatbuilding, and magical services.
Exports
Grain, wine, and preserved produce.
Freshwater fish and woven reeds.
Timber, river clay, and minor enchanted goods.
Imports
Iron tools and worked metal, Fine textiles and salt
Markets
Three-Reed Market, where Axii barges meet the inland roads.
Joined Quays, a paired riverside market built by rival toll towns.
History and secrets
Hydros grew from scattered river settlements into a fertile province as families built levees, canals, and ferry crossings. Its noble houses gained power by organizing flood defenses, while river traders made the waterways the region's busiest roads. Old channels still conceal ruins and lost homesteads, and generations of prosperity have not erased disputes over land, tolls, or the strange magic that gathers around the water.
Key events
Early Settlement
The Levee CompactThe first estates raised levees and began coordinating canal work after repeated floods.
Middle Years
The Keen's TurnA flood shifted the Keen into a new channel, leaving old roads and settlements submerged.
Recent Generations
The Joined Quays AccordNoble houses and river traders agreed to shared toll rules after a season of blockades.
Secret 1 · GM only
An ancient work beneath the delta can alter the courses of the Axii, Keen, and Yard.Found by: The Sunken Mile stones align with a dry chamber beneath the river at the lowest ebb.If found: The chamber contains a device capable of redirecting the three great rivers, threatening every settlement downstream.
Secret 2 · GM only
A cluster of settlements disappeared during a forgotten night, and official records were quietly rewritten.Found by: Several unrelated village songs describe the same bell sound and a night when no stars appeared.If found: The vanished communities may return as displaced people, restless spirits, or rivals with old legal claims.
Secret 3 · GM only
The region's high magic draws from a buried source that is growing less stable.Found by: A crystal seam near the Green Steps pulses when powerful spells are cast nearby.If found: The seam can amplify magic across the province, but its use may awaken something sealed below the hills.
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