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.