The Great Dome on Mercury

An Earthman stationed beneath a vast protective dome on Mercury faces a sudden hull rupture that threatens to drain the outpost's air and collapse its underground mine. He undertakes a desperate climb across the dome's lattice to seal the breach with a flexible plate while comrades restore pressure below. The immediate survival crisis expands into armed conflict when a bird-like Martian and his diminutive henchmen attack the settlement, forcing improvisation, close-quarters defense, and cooperation with alien laborers. The story blends high-stakes action and inventive problem-solving with recurring themes of duty, endurance, and interplanetary alliance.