The way he remembered it, they’d come through the lower tunnel, the engine just entering the second, when the End-to-Train unit had gone apeshit. There was a hot box back there and nothing for it but to stop. With the gradient they had to negotiate coming up before the higher tunnel, the last thing they needed was a car with screaming white-hot axles dragging behind them. Joshua recalled whistling through his teeth with exasperation as the whole damn hulk screeched to a halt and conductor and brakeman got up from their chairs and stretched their legs.

The boxes had stopped out there in the gorge, sitting in the thin wintry sunlight, leaving the cab of the engine about fifty yards into the tunnel, and Joshua knew he had to get back there and investigate. Barney the brakeman handed Joshua a thick black rubber torch with one hand and put the kettle on the hot plate with the other, saying clearly without words that the engineer would have their assistance when they were good and ready.

It was the delay that had pissed off Joshua. Just the time it was going to take to check it all out and put it right. It had been his homeward shift, taking him back to Beat River and Mary’s bed, a heavenly prospect after five nights in the bunkhouses, lying beside guys in their pits, snoring like they were sawing logs. He remembered thinking two things. The first was that at least it was lucky the cars had stopped outside the tunnel, and the second thought, like it had come from nowhere, was ‘the living rock’. Three innocent words, just sitting there doing nothing, going nowhere, meaning little. But there.

He took the torch and saluted sarcastically to Barney as he opened the cab door and left.

As he climbed down out of the huge red DRF30, Joshua touched the hand rail with an ungloved hand. Cold metal that has just rolled through the passes between the Alberta Rockies in minus twenty is not welcoming to naked flesh, and Joshua’s fingers stuck fast, forcing him to breathe on them to release his hand. It stung like crazy as it relinquished his grip and with a curse he sheathed it in a leather work gauntlet.

It was the only time he’d ever stopped in the tunnels, and yes, compared to the cement-lined tunnels that ran under the highways on the east coast, the rock was alive all right. So much for ‘a feat of grand engineering’. Seemed like the guys had just blasted the sucker and left. The walls and ceiling surprised him with their unhewn crudity, something he had never perceived by the weak light of the cab as they’d passed through here a hundred times. Ice hung from every crack in thin savage spikes and sporadically coated the rock-face with vast, glistening bulbous sheets.