Vahrdren has never possessed a single people, culture, or appearance.
The illuminated cities are crowded with families whose ancestors came from distant regions, frontier communities, industrial settlements, agricultural territories, old religious centers, and places that no longer exist. Differences in accent, dress, profession, faith, class, and regional custom are often more immediately important than broad biological ancestry.
The largest population is the Vahren, the ordinary human inhabitants of the stable illuminated lands. Vahren vary as widely in complexion, features, height, build, hair, language, and culture as any large human population. What joins them historically is not blood but the Vaeren: the regions maintained beneath dependable light. Their societies were shaped by rail transport, professional specialization, engineered agriculture, public institutions, and the assumption that civilization survives only because someone continually maintains it.
The Vaelar descend primarily from human communities that remained for generations in territories where reliable illumination weakened. Their differences are subtle: enlarged pupils, excellent vision in low light, cooler body temperatures, and unusual sleep cycles are among the most commonly recorded traits. In the central cities, Vaelar sometimes encounter the contradictory prejudice of being considered both provincial and vaguely unsettling. In frontier settlements, the same traits may be regarded as practical advantages.
The Kareth are also human-derived, though their ancestry is associated with old industrial populations exposed generations ago to processes that no modern physician fully understands. Their skeletons tend to be unusually dense, many tolerate heat exceptionally well, and slight mineralization can appear around nails, joints, or patches of skin. Kareth communities historically clustered around industrial regions, especially Kharvek, though migration has long since spread them throughout the illuminated world.
The Drenai are more difficult to place.
Biologically, most are nearly indistinguishable from Vahren. The difference lies in where some of them are found. Drenai have awakened inside sealed facilities, buried chambers, and ancient structures with little or no memory of how they came to be there. Some carry memories of settlements, streets, machines, or people for which no accepted historical record exists. The oldest recovered word associated with them, Drenai, has been translated variously as people, survivors, or replacements. None of those translations is universally accepted.
The people commonly called Lumen-born appear almost completely human in ordinary light. Their distinguishing trait is a subtle photoreactive tissue visible beneath thinner areas of skin: along the throat, collarbones, palms, temples, inner forearms, or ribs. The glow is biological and faint rather than magical, often resembling pale light passing through blood vessels. Their eyes may also reflect or emit a weak internal shine under low illumination.
The Hadrkin are the most visibly nonhuman of Vahrdren's established peoples. They are tall, narrow, long-limbed, and extremely upright, with matte gray or charcoal skin, reduced external ears, large dark eyes, narrow faces, and unusually long hands. Their anatomy is coherent and functional, but clearly not human. They work, marry, trade, study, travel, vote where local law permits, and hold ordinary professions like anyone else. What remains uncertain is where their ancestors came from.
In daily life, these distinctions do not determine a person's profession or social position.
A Kareth may be an aristocrat.
A Drenai may work as a hotel clerk.
A Hadrkin may teach engineering.
A Vahren may spend their whole life beyond the central light.
A Lumen-born may resent being treated as interesting.
Vahrdren's cities are old enough that biological ancestry rarely maps neatly onto class, occupation, neighborhood, or ideology.
That does not mean prejudice is absent.
Central Vahren sometimes call frontier residents lamp-fed when they want to insult people for being sheltered, while darkwise may be admiration or accusation depending upon who says it. Hadrkin may be treated as curiosities in districts unused to them. Drenai frequently encounter invasive questions about whether their memories are “real.” Vaelar are sometimes regarded as naturally suited for dangerous frontier work whether they want that life or not.
None of these assumptions is universally held.
The important division in Vahrdren remains less about what someone is than where they live, what work they perform, what institutions protect them, and how far they stand from dependable light.