D20 SYSTEM✦ Normal

The Iron Chasm Collapse

# Dungeon# Construct# Intrigue# Magitech# Wilderness

The deep crystal mines of Kazgoroth have fallen silent. The last transmission from the Rushing Engineers' expedition spoke of 'constructs gone mad' and 'overload chips in the walls.' Now, the surface city of Ironholde faces a crisis: the magical crystals that power their forges and wards are cut off. Two desperate groups claim the right to retake the mines—the industrious Rushing Engineers who built the place, and the Gloomwardens, Underdark refugees who fled to the mines for sanctuary. Both need the crystals to survive. Both blame the other for the catastrophe. You are the blade that must cut through the chaos, but every cut bleeds someone's future.

Chronicle Prelude

The surface staging camp at the mouth of the Kazgoroth Mine, a chaotic assemblage of tents, broken machinery, and arguing foremen. The air smells of ozone, sulfur, and desperation. The mine's great blast doors are shattered, leaking a faint, eerie green light from within.

Environmental Traits

A catastrophic cascade failure has turned the mine's security constructs hostile and destabilized the very crystal veins, risking a chain-reaction that could collapse the entire Underdark region. The mine must be stabilized or sealed forever.

Legendary Archetypes

Rayan

HP:45

STR:16

WIS: 12

CHA:11

Key Factions & Autonomous Nodes (8)

Foreman Krell
A stout, balding man in a grease-stained Engineers' Consortium jumpsuit. His hands are calloused, his face is permanently set in a scowl of impatient authority, and he wears a heavy tool belt. He smells of machine oil and sweat.
Seer Vela
A slender, pale woman wrapped in robes of woven gray moss and fungal silk. Her eyes are a milky, translucent blue, and faint bioluminescent patterns trace the skin of her hands and neck. She carries a staff of petrified wood hung with small, chiming crystals.
Patroller Construct
A humanoid-shaped assemblage of rusted iron plates and exposed piston limbs. A single, glowing blue lens serves as its head, sweeping the tunnels with a harsh beam of light. The insignia of the Rushing Engineers' Consortium is stamped on its shoulder plate.
Enforcer Construct
A massive, bipedal war machine built from heavy mining equipment. It carries a built-in arc welder in one arm and a crushing hydraulic claw in the other. Its chassis is scarred but formidable, and it moves with deliberate, threatening weight. Its optical sensor glows a baleful red.
The Overseer
A terrifying fusion of a central command computer and a living crystal growth. The machine's core is encased in a pulsating, purple-black Kazgoroth crystal mass, with tendrils of energy arcing between exposed conduits. It floats slightly above the ground, its multiple optical sensors focusing with unsettling intelligence.
Trapped Engineer
A young woman in a torn Consortium jumpsuit, her arm pinned under a fallen support beam. She is covered in rock dust and her eyes are wide with fear and pain. A broken data slate lies near her free hand.
Gloom Scout
A hunched, wiry figure cloaked in fabric that seems to absorb the light, patterned with dark grays and deep blues. Their face is hidden by a wrap, but their eyes, visible in the gloom, are sharp and watchful. They cling to the shadows of the tunnel ceiling.
Overseer Tarr
A well-fed human male in a clean, high-ranking Engineer's uniform, unlike the work crews. He has a nervous, sweating demeanor despite the cool cavern air. He constantly checks a pocket watch and avoids direct eye contact.

Chronicle Prelude

Environmental Traits

Legendary Archetypes

✦ Related Cases ✦

The Lost Workshop: Heart of a Raging Core

The Shattered Sky-Port: Construct Sweeper Runway Collapse