The Pitch Chasm

A cave-diver must drop into an inverted subterranean world to poison its megafauna nursery, while an apex hunter from below must climb the reverse-gravity cliffs to slaughter the ceiling-clans for their obsidian. Two worlds face each other across a thousand-foot vertical drop, where gravity reverses precisely at the midpoint. Sorcha is a ceiling diver who treats mercy as a lethal luxury, and Ruiseart is a brutal floor-realm hunter determined to strip the upper world of weapons-grade glass. As their desperate realities collide over starving clans and exhausted resources, they will shatter the chasm itself.