in Resym shifted into high gear the instant TTE heard about Fallen Timbers. Master Banchu’s ready to start moving his crews and their heavy equipment to Resym, as well, and once they get there, they’ll be laying double-tracked line in three shifts. On that basis, they’ll be putting in the next best thing to twenty-five miles of track a day, and Therahk estimates that we’ll need another couple of months to bring up the rest of the division and prep it for the move. That means they’ll have laid another eleven hundred miles across Resym by the time we get there.”
He paused, and chan Isail nodded slowly.
“You’re right that the weather in Thermyn and Naisom will be more of a problem,” chan Geraith conceded, “but the worst leg from that perspective’s going to be in Naisom, and that’s less than six hundred miles. On the basis of our exercises at Fort Emperor Erthain, the Bisons should be able to maintain an average speed of around fifteen miles an hour across the kind of terrain between Kelsayr and Thermyn even in winter. Allowing for the present length of rail, mounted scouts could cover the total distance from Vankaiyar here in Traisum to Fort Ghartoun in about sixteen and a half weeks. Allowing for rail length by the time we could get the Bisons to the railhead, the rest of the division could cover the same distance in about nine weeks, and I guarantee you that’s one hells of a lot sooner than anyone on the other side’s going to be expecting us!”
His staffers were staring at him now. They were silent for a very long moment, then chan Isail cleared his throat.
“Sir, the Bisons have never been tested on that kind of extended advance.”
“True enough.” Chan Geraith nodded. “But they have done the thousand-mile torture test—in winter, through the mountains—and did it damned well, too. And that was before we adopted the new rubber-backed track blocks. I know those were only trials, with the best mechanics we had on the spot to put faults right, but that’s still impressive as hell.
“I know it is, Sir. But this is a lot longer trip over a lot of different sorts of terrain. However good they may be, there’d be bound to be a lot of breakdowns before we ever got to Thermyn.”
“Agreed. On the other hand, we’ll have to leave a big enough force here at Salbyton to hold the Cut from our side and to make enough noise to keep Harshu looking this way instead of over his shoulder.” Chan Geraith shrugged. “We don’t want him to see the Bisons if he decides to risk a few dragons to fly reconnaissance, anyway, so whoever we leave behind couldn’t make much use of them here at the Cut. That being the case, we strip the brigade that stands in place and use its Bisons to supplement the flank column’s organic transports. And the Army’s shipping additional Bisons and Steel Mules forward after us as quickly as it can procure them, along with every steam dray it can get its hands on. Our engineers will improve the roads as we go, so anything coming down the route behind us should be able to move much faster than our main column. Banchu’s crews will go right on laying track behind us—and extending the kerosene pipeline, too. They ought to make another six or seven hundred miles good between the time we leave the railhead and the time we reach Thermyn, which will effectively shorten the distance any new Bisons or drays will have to cover. And TTE’s already surveyed their entire roadbed. We know where the worst terrain’s located, and they can push advanced crews ahead of the track layers to begin tackling them. The worst will be getting through the Dalazan Rain Forest in Resym…but that’s also where the TTE crews can start improvising bridges and improvising fords out of local materials soonest.”
“And those pickets they may’ve left behind, Sir?” the chief of staff asked.
“I’ll grant you they may have all sorts of ‘magic powers,’ Merkan,” chan Geraith said.