Trouble at the Doorsteps

Since temperature in volcanic winter was dangerously low, keeping the greenhouses warm was a priority. Grace utilized the mutated plant she had acquired - one that produced a liquid capable of generating heat. She mixed it into the soil to help maintain a stable growing temperature for the plants.

Because of the thick layers of volcanic ash in the sky, the sunlight was blocked which didn't left natural photosynthesis as an option. So they relied on the artificial lighting.

They set up a combination of - hand-cranked and pedal-powered generators which could provide a consistent energy source, fire-based reflectors using metal surfaces to amplify light and heat, and glowcap mushrooms which were rare mutated fungus Grace had found. These mushrooms emitted a faint natural glow and could be used to provide a minimal light source for the plants.