The Isotope Ferment

On the dying asteroid cooperative of Zhelezkova, heat is life, and vacuum is an absolute insulator. Levmir is a master brewer whose genetically engineered Spirka-yeast strains are the only biological engines converting raw slag into the edible calories that keep the miners alive. When a catastrophic radiator failure forces him into the sealed, irradiated upper strata of the asteroid to save his vats, he discovers that the station's founding wasn't an industrial miracle—it was a mass murder. The bodies of the first generation have been clogging the thermal vents for decades. Now, armed only with applied biology, thermodynamics, and the harsh pressure mechanics of his trade, Levmir must wage a shadow war against the cooperative's overseers. Every dropped degree and every vented pipe is a weapon in his fight to keep the truth from staying buried.