The horizontal progression across the western white-wood sill maintained its absolute, iron-shod rhythm, refusing to warp or climb by a single degree. The fresh mark began exactly at the terminal edge of the previous day's incision, biting into the petrified grain with the same heavy, unhurried density that had governed the valley since the vertical margins ran dry. The timber, thick with the accumulation of pulverized limestone flour and dry salt-crust, yielded no splinters; it parted only in dry, uniform gray shavings that fell into the grain like cold bone-dust.I stood by the southern door-jamb of the fifth cabin, my left arm—the mineralized, dark column of packed muscle—resting flat against the dry stone course. The flesh had achieved an absolute, unbroken equilibrium with the limestone masonry; it carried no heat of its own, locked in the same slate-gray stasis that held the pavement of the lane. When I closed my fist, the movement was short, heavy, and mechanical, an honest exp