Clockwork Sediment
Limestone dust coats fingernails as they scrape against a buried brass gear, its teeth etched with microscopic abrasions from centuries of friction. As the silt clears, the mechanism begins a rhythmic thrum that accelerates through striated layers of sediment like a spring being wound tight. This mechanical pulse vibrates deep within the hollow stone, an ammonite-shaped chamber where movement persists despite the heavy weight of deposition. In this hidden section, the frantic cadence of the machine finally settles into a steady, singular beat.