The World of Halidom

Explore the vertical city of Halidom.

Halidom works vertically. Towers anchor the Cloudline, power the grid, regulate the rain. The villages below do the work the towers won't. Maintenance, repair, the constant rhythm of hands on ropes and tools on steel. Ten towers. One veil. A people split between sky and soil.

PLACES

City of Halidom

The city. Ten towers rising from the stone where the sea once stood. Built together after the Great Weathering.

The Old Seabed

A broken wasteland of limestone mounds, shallow valleys, and pale stone. Beneath lie hollowed caverns, buried amplifiers, sapfire pools, and something sleeping.

Highborn Towers

Central Spire

Once the beating heart of the sky system. Renamed. The seat of the Council and the story's central lie.

The Needle of Sarin

Ancestral spire of House Larik. Long, narrow, and unnervingly still, built by engineers who prized listening over spectacle.

The Ascendant Fang

The oldest tower in Halidom. Cracked, patched, and stubbornly standing, with the oldest Cloudline regulators buried deep below.

The Ember Spire

Once burned so fiercely the sky glowed red for a week. Now sealed and fireproof, its heat still feeds ovens, pipes, and the labor below.

Glassmere

Halidom's furnace tower. Blazing white and ringed with vents, mirrors, and ductwork, where glass, panels, and polished surfaces began.

Thessa's Crown

A spiraled tower at the cliffs, shell-like in morning light. Once a wind-messaging hub, and the stone around it still seems to remember the old codes.

Starwell

Tower of springs and steamworks. Warm, mineral-fed, and half practical, half sacred in the way people talk about it.

Tarnspire

A reflective tower that never seems to hold one shape for long. Always shifting with weather, light, and distance.

Valeheart

A hardened fortress-tower wrapped in security mesh, with a sealed lower structure and the feel of a place built to keep things in as much as out.

The Archive Pillar

Vault of Council records, algorithms, and sanctioned memory. The place where history is stored, altered, and hidden behind locked glass.

Spire Eleven

A hidden tower beyond the cliffs, omitted from Halidom's telling of the world. Home of the Seedbinders' descendants, it preserves forbidden records, unfinished science, and the truths the ten towers chose to bury.

Rooted Villages

Ashgrove

The largest and most central Rooted settlement beneath the towers. A busy hub of scaffold homes, gardens, rigging lines, shared meals, trade, and daily labor.

Needleroot

A quieter village beneath the shadow of the Needle of Sarin, shaped by old timber, narrow paths, and a culture of patience, listening, and careful craft

Stoneveil

A stony, older-feeling settlement where the tower shadows fall long. Its name suggests weathered stone, muted colors, and people used to living close to old foundations.

Mossmere

A damp, green village marked by overgrowth, soft ground, and patched structures reclaimed by moss and vine. It feels resourceful, handmade, and close to the living world.

Stillmere

A raft settlement built on pooled water and drifting platforms rather than fixed ground. More fluid and improvised than the other villages, with a life shaped by water, rope, and salvage.

Starwell

A lower settlement tied to springs, steam, and warmth. Practical and communal, with an atmosphere shaped by mineral water, rising heat, and old habits of healing and trade.

Singing Ledge

A cliff-carved settlement beneath Thessa's Crown, built into the rock with homes, paths, and openings that catch the wind. Known for its exposed heights, old signal paths, and the sound of air moving through stone.

Canopy Reach

A lower settlement built among the trees beneath the towers, with platforms, ropeways, and connected walkways strung through the canopy.

Technology & Systems

The systems of Halidom are designed to control, sustain, and survive a world reshaped by the Great Weathering.

Mirror-Slate

The Mirror-Slate is a banned learning tablet containing archived knowledge from the academy and Council records, preserved outside official control. Smuggled to Elyra by her bio-nanny, it features reflective glass on one side and a matte black interface on the other.

A device of memory and defiance, it holds fragments of a past the towers chose to forget.

The Bloom

The Bloom is a bioengineered growth system originally designed for rapid environmental recovery, but its uncontrolled expansion contributed to ecological collapse during the Great Weathering.

An aggressive, self-propagating organism. Efficient, adaptive, and nearly impossible to contain without restraint.

Biolume

Biolume refers to Seedbinder-grown mosses and lichens that emit a soft, natural glow, providing clean, fireless light in dark environments.

Sustained through careful cultivation, it represents a quieter, more balanced use of engineered life.

Glow-Jars

Glow-Jars are portable vessels containing living biolume cultures, used as a primary light source by Rooted communities.

Carried by children and workers alike, they have become symbols of resilience and continuity across generations.

Sapfire

Sapfire is a volatile biofuel derived from engineered organic material, once used to power Halidom's rapid expansion and infrastructure.

Though dangerous and unstable, it remains a critical energy source, still used sparingly by the Skywoven.

The Cloudline

The Cloudline is a suspended atmospheric system that gathers energy and redistributes it as controlled, mineral-rich rainfall, sustaining agriculture and regulating climate in Halidom after the Great Weathering.

Anchored to the Central Spire, it is both the city's lifeline—and its most fragile dependency.

The Salt Cycle

The Salt Cycle is an ancient, closed-loop mineral system buried beneath the Ascendant Fang, designed to regulate environmental balance within Halidom.

Largely unseen and poorly understood, it remains a foundational safeguard within the city's survival systems.

The Harmonic Network

The Harmonic Network is a system of resonance-based transmitters and receivers that stabilize environmental systems and suppress threats beneath the surface.

Formed by buried repeaters, tower amplifiers, and Skywoven broadcasters, it operates as an unseen layer of control beneath the world.

The Whisper Lattice

The Whisper Lattice is a distributed network of ambient-powered sensors that monitor environmental conditions through pressure, heat, and resonance.

Though largely forgotten, these silent nodes continue to observe and record, forming a persistent, unseen awareness across Halidom.

Shell-horn

The shell-horn is a spiral-carved instrument designed to carry sound across distance using tuned resonance frequencies.

Used by the Skywoven, it serves as a final line of defense. Simple, ancient, and unexpectedly powerful.

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