Saethera, The Southernmost Biome, The Luminous South, Geban Empire, Saethern, bioluminescent forests, moss oceans, Scout-Class Engineered, Assault-Class, Berinu Islands, polar twilight, VESSELBORN, 自陨者生, CHRISTOPHER JAEPHETH CUBY, 顧承光, GEBAN CHRONICLE, BOOK OF THE WITNESS, VESSEL BORN, THE BLOOM, VESSELBORN CODEX, VESSELBORN MUSIC, VESSELBORN OVA, CUBY HOLDINGS LLC
Saethera
Alias: The Southernmost Biome, The Luminous South Location: Southern polar region (beneath Saethern)
Saethera is Geba’s southernmost polar biome, locked beneath the unmoving silver gaze of Saethern in perpetual twilight. Bioluminescent fungal forests and vast moss oceans dominate its lowlands, thriving in constant 10–25°C warmth with light-reactive flora and aggressive fauna that devour outposts and repel settlement. The Geban Empire never conquered it—expeditions vanish, patrols fail. Only Scout-Class Engineered, with Assault-Class companions, form small, self-sustaining communities here—the sole humans able to survive its alien hostility. A few imperial outposts cling to the northern coast near the Berinu Islands. Saethera remains a sacred frontier of untamed creation, revered in southern doctrines as the luminous edge of He Who Allows.
About Vesselborn
Vesselborn is the story of Geba — a world that has carried an empire for six thousand years.
It begins with Vaer’karesh, who unites five nations into the first empire and fixes a common language and law. Across the ages, the empire fights and finally breaks Thazvaar, welcomes Jeyrha through engineering and diplomacy, and liberates Berinu by choice. In Ngorrhal, the people of the mountain passes lose their ancestral name and are permanently renamed the Frost Sentinels, whose strength helps secure imperial rule. The Haavu cannon systems cement that dominance.
At its height, the empire spans continents and raises relay towers that bind cities, coasts, and passes into one network. Assassinations and civil wars follow — the Fracture — but the answer is not a vacuum. The Shadow Rule forms from imperial networks and manufactures peace, ending the warlord broadcasts and taking the world back from collapse. They are the empire made quiet: continuity without ceremony.
Today, the Shadow Rulers still govern from the background while the Energy Wars — covert struggles over power grids and relays in uncivilized regions — decide who controls energy, transport, and culture.
Stories range from relay-field defenses and inland recoveries to city governance and frontier resettlement; from rail lines and air programs that stitch regions together to festivals and work crews where culture and politics collide; from Frost Sentinel memory to families choosing the safety of hub clearings or the risk beyond the grid.
This is Geba. It began in silence. It has not yet ended.