Title: The Twelve Mile Terror: High Water, Heat, and Haunts on the Bayou
Introduction
The Setting: The slow-moving, flatwater stretches of Twelve Mile Bayou running down toward the Red River through Caddo Parish.
The Heat & The Blues: Late summer in North Louisiana—sweltering humidity, stagnant water levels near the Soda Lake wetlands, and the oppressive stretch of August and September heat.
The Premise: Bayou Earl and Uncle Bill find themselves tracking something coming up out of the deep bends of the bayou as the seasonal shift stirs up old river-bottom secrets.
Introduction for the Game Master
Welcome back to the murky backwaters of Caddo Parish. The stretch of Twelve Mile Bayou running north of Shreveport toward the Red River and the John Franks Wildlife Management Area has always been a peculiar place. But as any local tracker will tell you, the late-summer corridor between July and September brings out a different breed of trial.
Meteorological records and local observations from the recent months paint a brutal picture: relentless triple-digit heat waves, stagnant flatwater levels, rapid-onset drought conditions sucking the moisture from the cypress brakes, and sudden, violent microburst thunderstorms whipping through the timber. It is under this sweltering, oppressive sky that Bayou Earl and Uncle Bill push off from the muddy banks to investigate disturbances moving upstream.
This module provides game masters with all the tools needed to run a gritty, atmospheric survival scenario compatible with Open D6 and classic roleplaying frameworks. Use these weather conditions, random wildlife encounter tables, and Swamp Dread mechanics to test your players' grit as they navigate the bends of Twelve Mile Bayou.
Body Content: The Bayou Trail
The Launch Point: Starting near the old channel markers where the flatwater meets the heavy timber and levees.
Encounters Along the Banks: Navigating the peculiar local sights—swarms of black vultures circling the low banks, unseasonably large gators staking out the muddy drop-offs, and strange disturbances in the water near the old plantation points.
The Swamp Dread Mechanics: Managing the oppressive humidity, keeping wits intact against the whispering shadows of the cypress line, and relying on grit when the outboard motor sputters out.
Part 1: The Environment & Weather Tables
Operating along the bayou during late summer means battling the elements just as much as whatever lurks beneath the surface. Humidity routinely pushes heat index values past 110 degrees, while sudden severe squalls can drop visibility to zero in a matter of minutes.
Daily Bayou Weather Table (Roll 1D6)
1. Stagnant Heat & Glare: Air temperature hits 102°F with zero wind. The bayou surface is slick as glass, mirroring the blinding sun. Characters expend twice normal water rations or suffer fatigue penalties.
2. Hazy Backwater Murk: A thick, humid fog hugs the water at dawn, lingering past noon. Visibility is reduced to 20 feet on the water, making navigation treacherous near submerged cypress knees.
3. Sudden Squall & Downburst: A violent localized thunderstorm strikes without warning, bringing 60+ mph wind gusts and horizontal sheets of rain that churn the flatwater into choppy whitecaps.
4. Drought-Drawn Low Water: Water levels drop sharply, exposing stinking mud flats, stranded river debris, and hidden snags that threaten outboard motors and hulls.
5. Copper Sky & Biting Gnats: The sky turns an eerie, bruised copper hue. Swarms of aggressive gnats and mosquitoes descend, forcing characters to make stamina checks or suffer continuous distraction modifiers.
6. Perfect Calm: A rare, deceptive break in the humidity. Clear skies and a mild breeze make travel smooth—until something ripples the surface far off the bow.
Part 2: Wildlife and Encounter Tables Along the Trail
The biological pulse of Twelve Mile Bayou changes dramatically as the seasonal heat peaks. Animals are driven closer to shrinking water holes, leading to tense, volatile close-quarters encounters along the banks and levees.
Twelve Mile Bayou Encounter Table (Roll 1D6)
1. Vulture Circle & Rotted Snag: A dense congregation of black vultures crowds the low mud banks, feeding on something half-submerged in the root tangle. Investigating reveals old wreckage or stranger, displaced relics from up-channel.
2. Territorial Gator Bull: An oversized, sun-bleached alligator stakes out a narrow channel bottleneck. It refuses to yield right-of-way, slamming its tail against the water to warn intruders away from its bankside slide.
3. The Cottonmouth Rookery: The skiff brushes against an overhanging willow branch, disturbing a nest of aggressive cottonmouths dropping from the leaves. Reflex tests are required to avoid venomous strikes.
4. Wild Boar Sounder: A family of razorbacks tears through the cane breaks along the levee, panicked by the inland heat and looking to cross the bayou channel directly across the characters' path.
5. Driftwood and Debris Hazard: A massive, waterlogged cypress log floats just beneath the waterline, threatening to shear a shear-pin or punch a hole in a wooden hull if spotted too late.
6. The Bayou Whisperer: A fleeting glimpse of a figure moving through the distant cypress timber—neither fully seen nor leaving footprints in the soft silt. A true test for the party's sanity and perception.
Part 3: Swamp Dread Mechanics
Navigating the shadow of the bayou exacts a mental toll. The oppressive humidity, the claustrophobic wall of Spanish moss, and the lingering isolation trigger the Swamp Dread system:
Heat Exhaustion: Characters failing consecutive stamina rolls due to the climate lose movement rates and dice pools until they find shade and hydration.
The Weight of the Woods: When camping overnight along the levee, characters must make resolve checks against the unsettling chorus of nocturnal wildlife and shifting swamp gas ignitions (will-o'-the-wisps). Failure results in broken sleep and reduced starting action dice the following morning.
Conclusion & Action
The Final Takeaway: Surviving another late-summer expedition on the Twelve Mile corridor and making it back to the Shreveport cabin before dusk settles.
Call to Action: Drop a comment on how your own late-summer excursions along the bayou are holding up.
Map bonus locations
The Twelve Mile Terror: Map Location Guide & Open D6 Mechanics
1. START: Deadfall & Vultures (Mile 0 - I-220 Bridge)
Description: The launching point where the concrete overpass gives way to the dense cypress brakes. Black vultures crowd the low mud banks, feeding on drift and debris trapped against the pilings.
Open D6 Mechanics: Characters launching skiffs here must make a Moderate Perception or Survival roll to spot submerged jagged rebar and hidden snags. Failure results in hull damage (1D6 structural points) or a tangled outboard propeller requiring 10 minutes to clear.
2. Gator Pool (Mile 3 & Mile 5)
Description: Deep, stagnant bends where territorial bull gators stake out narrow channel bottlenecks, surrounded by floating mats of water hyacinth and bone-white snags.
Open D6 Mechanics: An approaching boat disturbs a territorial bull gator. Treat as a Wild Creature encounter (Move: 12, Bite/Tail Slap: 3D6 damage). Characters must make a Difficult Coordination or Navigation roll to avoid capsaw if the gator strikes the side of the skiff.
3. Cottonmouth Rookery (Mile 8 & Mile 10)
Description: Low-hanging willow branches and drooping Spanish moss dripping with venomous cottonmouths dropping directly into the water or onto passing watercraft.
Open D6 Mechanics: When brushed by branches, characters present in the open watercraft must roll Reflexes vs. Difficulty 15. Failure means a sudden strike inflicting 1D6 points of normal damage plus mild venom effect (character suffers a -1 penalty to all physical actions for 24 hours unless a Moderate Stamina roll is passed).
4. Wild Boar Sounder Crossing (Mile 10)
Description: A panicked family of razorbacks bursts through the cane breaks along the levee, plowing straight across the open channel to escape inland heat.
Open D6 Mechanics: Crossing creates churning water hazard and physical obstruction. Skiffs risk swamping unless the pilot makes a Moderate Piloting or Watercraft roll. Swimming boars inflict trampling/tusk hazards (2D6 physical damage) if intercepted at close range.
5. The Whispering Copse (Mile 12 - End/Destination)
Description: A dense, claustrophobic grove of ancient cypress trees near the Red River confluence where the air grows deathly still, and phantom voices echo across the flatwater.
Open D6 Mechanics: The psychological climax of the trail. Characters must make a Willpower or Resolve check against Difficulty 16 upon entering the copse. Characters who fail suffer the effects of the Swamp Dread table, losing 1 action die from their active pool for the remainder of the encounter due to auditory hallucinations and creeping paranoia.
Call to Action for Game Masters
Download and Play: Game Masters are invited to download this custom encounter map and location guide for personal use only in their home campaigns. Drop Bayou Earl and Uncle Bill into your own game nights, test your players' sanity against the Swamp Dread mechanics, and see if they can survive the late-summer run down Twelve Mile Bayou!
Product Identity & Legal
The following items are designated Product Identity of Arthur Earl C. Hedges Jr. / The Adventures of Captain Hedges: The world of Zimrala, the Tygerian Isles, the Ether Dragons, the specific "Hedge Wizard of the Shreveport Cabin" persona, Bayou Earl, Uncle Bill, and the "Swamp Dread" mechanics of Twelve Mile Bayou.
The Monsteray of Zimrala, Monsters! Monsters! and Humans, Humans (1st Edition) are trademarks of Ken St. Andre and Troll Godfather Press and are used with permission. The statistics and game mechanics provided herein are designated as unofficial playtest materia
This short news piece provides a look at the modern infrastructure and access points along Twelve Mile Bayou near the Shreveport area.
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