The tourist town of Boone, in the Blue Ridge Mountains, faces an uncertain future in the wake of Helene’s devastation. Freddie Pell helps lift a vintage wooden chair off the sidewalk and back inside his art gallery. It’s starting to rain in downtown Boone, and he doesn’t want it to get soaked — again.Inside, vast muddy puddles spread across the room as workers use mops to push the water out the door.