The idea for the rail line came from Wat, of all people, born out of three years of watching horse-drawn wains struggle with the weight of coal and ore along even the valley's best roads.
"A wheel on plain dirt fights the ground every turn it makes," he said, presenting the rough concept to the council with a sketch considerably cruder than Elias's careful maps but no less sound in its underlying logic. "Lay iron straps along a wooden track, keep the wheels running true along a fixed line instead of fighting mud and rut, and a single horse could pull three times the load it manages now. I've seen the principle used in mine-workings, on a smaller scale. I see no reason it couldn't serve the whole stretch between the forge and the salt spring, if we built it properly."
Elias, examining the sketch with immediate professional interest, added the refinement that ultimately shaped the whole project. "Not just horse-drawn. If the grade is gentle enough, and the load properly balanced, a length of track like this could eventually carry considerably more than a single wain's worth of cargo, given the right mechanism to move it."
Thomas found himself drawn into the planning more fully than he had been in months, the familiar, satisfying pull of a genuine engineering problem offering a welcome distraction from the falling number he still checked, quietly, every evening. They spent the better part of two months on the design — iron straps forged in careful lengths at Wat's own furnace, a roadbed graded with more precision than the ordinary road had required, a system of switches at the busier junctions that let empty wains yield properly to loaded ones without either needing to leave the fixed track.
The first proper test came on a bright morning in late summer, a single wain loaded with three times its ordinary burden of ore, drawn by one patient horse along a quarter-mile stretch of finished track between the forge and the first switch point. Half the town turned out to watch, and Thomas found himself standing beside Victoria at the track's edge, feeling an anticipation he hadn't quite expected to feel this strongly over something so far removed from his own private fears.
The wain moved smoothly, the iron straps humming faintly beneath its wheels, the horse's effort visibly, dramatically lighter than the same load would have demanded on ordinary ground. The gathered crowd's cheer, when the wain reached the switch point without incident, carried a genuine, unguarded joy that reminded Thomas, watching it, of the crossroads chapel on the day the charter itself was first read aloud.
"Three times the load," Wat said, watching his own creation prove itself with the particular satisfaction he rarely allowed to show so openly. "And that's just the beginning of it, if Elias's calculations about a proper mechanism hold true. Give us another two years, and I'll wager we're moving cargo along this valley faster than any river barge in the March could manage."
Victoria, beside Thomas, was already calculating the wider implications with her usual sharp attention. "The salt spring reached in half the time. The Genoa trade doubled, maybe tripled, once the whole line connects properly to the southern road. This isn't just a convenience, Thomas. This is the single largest expansion of what this valley can actually produce and move since the day the wire first went into the ground."
Thomas watched the wain roll on toward the second switch point, the crowd trailing alongside it in a loose, celebratory procession, and felt, for the length of that bright summer morning, the particular clean satisfaction of watching an idea move from careful sketch to solid, working reality — a satisfaction that owed nothing to the falling number, nothing to the fear that had shadowed so much of the past year, only to the simple, durable pleasure of building something well.
"Wat," he said, as the blacksmith came to stand beside them, watching his own creation prove itself with visible pride, "I don't think I've properly thanked you, this past year, for everything you've carried alongside me. The forge, the trench, the rail line, the letter I know you wrote and haven't spoken of since. I don't think this valley survives as well as it has without you standing at the center of half of what's actually held it together."
Wat's weathered face colored slightly, uncomfortable with the praise even now. "Don't go turning maudlin on me twice in one season, Thomas. I built a rail line. That's all this is." But something in his voice, watching the wain complete its final approach to the switch point, carried more warmth than his gruff words let show, and Thomas understood, watching him, that the thanks had landed exactly where it needed to, however much the blacksmith might pretend otherwise.