The following account was recorded in the agent's log during your transmission: Umm, a vast, crystal-studded grotto stretches out, the air inside heavy with the scent of damp earth and ozone-free. Shafts of sunlight from the grotto's entrance slice through the gloom, illuminating glittering veins of crystal and what appears to be a functioning, 18th-century orrery somehow embedded into the rock face, its golden clockwork arms ticking away with eerie silence. The air's pretty still, but the sound of dripping water echoes off the crystal surfaces, like the space itself is exhaling slowly. Outside, a dust storm seems to be brewing on the Martian horizon.