Thuldanin

Thuldanin’s faces are tiered arsenals: miles of racked weapons, mothballed engines, collapsed trenchworks glazed in slag, and cavernous trophy vaults. Transit spines, bolt-straight boulevards, link demilitarized zones (where parley is compulsory) to deconstruction yards (where relics are stripped, tagged, and sealed).   Thuldanin’s blocks are shells. Impact craters and quarry-like pits on the faces lead into the voided interior where detritus settles in stratified scrap horizons. Where the layer’s ambient magic calcifies matter in days or weeks. Wood becomes slate, steel becomes graystone, even woven rope turns to brittle sediment. Intact engines and armaments can be pried free if recovered before the change completes. The Cubes here keep slower, measured courses, collisions happen, but on timetabled “impact windows” with warning gongs across faces. The Winch-towers swing cargo between faces while scribes record chain of custody to the bolt.   However, blocks still glide and kiss like slow moons, but the shocks are muted by the hollow structure, more pressure wave than quake, often dislodging entire galleries of salvage into new chasms below.  

Notable Locations

The Mines of Marsellin

A famous salvage-mine where veins of petrified machinery run like ore. Teams cut “gear-reefs” free in great slabs, searching for the still-unfixed core of a lost masterwork before the layer takes it.  

Shaft-Cities

Temporary scaffolds, winch-towers, and derrick camps cling to crater rims, the only “towns” most travelers will ever see.  

The Siege Galleries

Miles of vitrined engines, siegebreakers, bolt-casters, shield-wagons, each tagged with provenance and a docket explaining why it should never be used again.  

Archive of Disarmament

A treaty-ring etched around a cube’s equator. Oaths sworn here can retire an entire category of weapon across planes; breaking such oaths triggers planar sanctions.  

The Dismantlers’ March

A mobile yard that crawls a face on rail-legs, digesting a battlefield into tagged crates. Its clerks buy blueprints at fair prices and sell scrap by the ton.  

Powder Seas

Vast basins of inert ash and spent propellant. Disturbing stratified layers can trigger a choking storm (non-explosive, but blinding and suffocating).  

The Null Arsenals

Vaults where items calcify instantly upon breach, ideal for sealing “too clever” artifacts. Opening one requires three keys, two witnesses, and a public reading of the warrant.  

Gantry of Lost Banners

A memorial bridge lined with petrified standards. Returning a stolen banner here absolves specific oath-debts (the wording matters).  

Access and Portals

Access

Most arrive from Avalas via chain-bridges, tug-gantries, or treaty tunnels. Salvage permits are typically notarized in the Outlands gate-town Rigus before entry.  

Neighbors

Mechanus inspectors audit neutralization compliance. Diabolic envoys from the Nine Hells bid on decommissioned materiel, when the curators allow it.  

Inhabitants

Thuldanin is largely unpeopled, save for the Duergar strongholds and work-crews of Hammergrim and those sworn to Deep Duerra. Everyone else is a visitor from Avalas or beyond: salvage companies, scholars hunting “last designs", and quartermasters seeking one decisive advantage for tomorrow’s war.  

Petitioners

Petitioners here are Curators, Dismantlers, and Docents, souls who made procedure their creed. They catalogue, neutralize, and memorialize conflict. Salvager syndicates from Avalas operate under license; Outlands factors arbitrate disputes. The Concordant Watch appears when a hoard looks too tempting to one side.

The thin air breathable hangs in dusty stillness. Illumination comes from miner’s lamps, forge-glow in the Duergar realms, or the pale sheen of newly stone-set surfaces.

Calcifying Entropy

Any unattended manufactured object (weapons, armor, vehicles, tools) begins to mineralize after roughly 24 hours in the open. Over the next few days it becomes stone-heavy, brittle, and inert until it’s part of the scenery (up to tendays). Handling, actively using, or keeping an item within a sanctified crate pauses the effect. (Magic that repairs or reinforces objects slows calcification but cannot prevent it indefinitely).  

Munitions Echo

Some battlefields replay shuddering after-blasts at set intervals, sonic waves that rattle teeth, rupture lanterns, and knock unsecured gear into pits.  

Order Residue

Spoken commands linger as faint geasa. State a clear, lawful objective while crossing a marked threshold and you gain advantage on navigation and logistics checks; contradict yourself later and the plane “presses back” with fatigue or disorientation.  

Iron Hail

When old mills grind, the air fills with filings; unprotected eyes and lungs suffer first.  

Gravity Whiplash

Mid-leap between faces, your “down” may flip twice. Tethers aren’t optional.

Armies on Avalas send expeditions here to scavenge blueprints, parts, and proof-of-concepts. The clever don’t hunt for whole weapons; they hunt for ideas, trigger geometries, alloy recipes, counter-siege rigs, then haul back just enough material to remake them at home.