Shelley and Celine were halfway across the Rockies when they passed a sign beside the highway that blinked BLASTING AHEAD in angry orange letters three feet high. Blasting what? She imagined dynamite and geysers of rock cracking holes through the hearts of mountains. This was the Trans-Canada. Weren’t they done with all that in the sixties? The traffic oozed to a stop at the chin of a long valley. Campers and minivans glittered a mile down the road, around the toe of a cliff, and out of sight. No town, no stores, no houses, no exits. Not even a signalman flashing a STOP / SLOW triangle. They could be waiting a minute or an hour. She shifted to park and turned off the ignition. The July sun puddled over the fenders. The car smelled of…