Iron Choir Emergency Seed Vault

Iron Choir stores forty crop lines behind a rotary seal that clicks loud enough to count beside running pumps. The sleeves hold grains, quick greens, fiber reed, and six medicinal plants in charcoal paper with mineral desiccant. A sound vault smells like dust and cold metal. Malt sweetness means moisture got in. Open it under dry work light, record the lot, and match the planting card's substrate, water, and day length before breaking a sleeve. Heavy crews trust the mechanical detents; luxury berths pay extra for silent cabinets and remote lies. The vault can restart a burned garden, but it cannot repair careless taxonomy. Galley steam wakes mold. Repeated warming spends seed life. Planting unknown medicinal stock without quarantine can poison the first harvest or introduce a blight that finishes what the original emergency started.