The scent of wheat mingled with the earthy aroma of soil, wafting on the breeze. In the nearby river, gentle ripples shimmered under the sun.
It was a peaceful and idyllic sceneâstanding there amid the fields, one could almost forget the looming threat of war. If not for the barbarians, this wouldâve been a picture-perfect moment of rustic tranquility.
After chatting a bit more about the upcoming harvest, Xiao Ming finally shared with Niu Ben, Lu Fei, and Luo Xin the news of the barbarian envoysâ arrival in Changâan.
âJust over two months?â Niu Ben frowned slightly.
Xiao Ming noticed his expression and asked, âWhat is it, General?â
Niu Ben replied solemnly, âYour Highness, the barbarian totem is the steppe wolf. They fight like wolvesâcunning and treacherous. We must not trust their claim of âthree months before their attack.ââ
âExactly,â Lu Fei agreed. âFrom our experience fighting the barbarians, itâs clear theyâll use any means necessary to win. They lie, deceive, and strike when least expected.â
Pang Yukun exchanged a glance with Xiao Ming. They hadnât dealt with the barbarians enough to understand their tactics, but now their expressions turned grave.
âPlease, elaborate,â Xiao Ming asked seriously.
Niu Ben nodded. âIf they say theyâll attack in three months, itâs likely to lull us into a false sense of security. Their real plan is to strike early and catch us unprepared. From this point forward, Your Highness should dispatch scouts into the steppe to monitor their movements and prepare for a sudden strike on Cangzhou.â
âTheyâll almost certainly send small tribes first,â Lu Fei added. âA probing attack to test our defenses before committing their main force.â
Luo Xin opened his mouth to speak, but with both of them covering the essentials, he simply nodded and said nothing.
Xiao Ming nodded slowly. This information changes everything.
If the barbarians did launch a probing attack, he had to make sure not to reveal the cannons too early. The element of surprise must be preserved until the main army arrived.
âVery well,â Xiao Ming said. âGeneral Niu, I ask that you personally oversee Cangzhouâs defense. Leave only enough soldiers behind to harvest the wheat.â
Niu Ben gave a crisp nod. âRest assured, Your Highness. With me in Cangzhou, the city will stand like a mountain.â
With the matter settled, Niu Ben and the others departed immediately. They needed to lead the Qingzhou Army back to Cangzhou City without delay.
Xiao Ming and Pang Yukun remained. Their job was to ensure Cangzhouâs supply lines stayed open.
By midday, they had inspected all the government-run fields. Pang Yukun returned straight to the Command Office, already planning how to coordinate grain and supply deliveries.
Qingzhou was now in a state of full military readiness.
That afternoon, Xiao Ming visited the machinery department. He instructed Chen Qi to hand over the newly finished ten cannons to Pang Yukun for immediate transport to Cangzhou. One additional cannon would remain behind for training purposes.
Plans rarely keep up with change.
âYour Highness, will ten be enough?â Chen Qi asked, watching as slaves carefully lifted the cannons onto carts.
âIt wonât be,â Xiao Ming replied grimly. âBut we donât have a choice. Letâs just hope the barbarians arrive late.â He paused. âBy the way, howâs production going on the powder bombs I asked for?â
At the mention of that, Chen Qi looked rather puzzled.
âYour Highness⊠I understand the rusted nails inside. But⊠why are we packing animal dung into them?â
âYou wouldnât understand even if I explained,â Xiao Ming said. âJust follow instructions. Divert some laborers immediately to start mass-filling those powder bombs. Weâll make up in numbers what we lack in firepower.â
Chen Qi scratched his head but nodded. The whole business with the powder bombs still baffled him.
âAnd the catapults?â Xiao Ming asked.
âWeâve already built thirty,â Chen Qi replied. âI had Zhang Liang call in extra carpenters. Since itâs just a basic design, production is fast.â
He pointed toward a courtyard nearby. âTheyâre assembling more right now.â
The catapults Xiao Ming had requested were small and portableârange under 200 metersâeasy to mount atop walls.
Nobody knows when the barbarians will strike, he thought. We must prioritize speed. Sacrifice complexity for quantity.
In the adjacent yard, hundreds of carpenters were hammering away.
The design was a simple torsion catapult, modeled after a bow. A bent bamboo arm was tied with hemp rope on each side, forming a spoon-like scoop at the center.
To fire, soldiers would pull back the scoop and releaseâjust like drawing a bowstring.
It required three soldiers to operate, but was quick and easy to make.
Xiao Ming had found this design in the technology crystalâthe simplest, fastest solution to deal with the urgent threat.
âHave Zhang Liang send more carpenters,â Xiao Ming said. âCangzhou needs at least fifty of these. Weâll need them there within the next few days.â
The urgency in his voice wasnât lost on Chen Qi.
âYour Highness⊠are the barbarians already on the move?â he asked.
âMost likely,â Xiao Ming answered. âWe must be ready.â
Chen Qi nodded. âThen Iâll push production even harder. Alsoâthe fourth iron mold is almost done. By the end of next month, we can produce another sixteen cannons.â
Xiao Ming let out a long breath. âThat brings us to twenty-six total. Letâs hope⊠itâll be enough.â
If Niu Benâs hunch was correct, they wouldnât even get the full three months.
It was like a boxer counting âone, two, threeâ before a matchâexcept the punch came on âtwo.â
But such is the art of war. If the barbarians fought fair, the Great Yu Empire wouldnât be in this sorry state to begin with.
Chen Qi scratched his head. âThatâs the best we can do for now.â
Then he remembered something. âAh, Your Highnessâthe glass lenses you requested from the glassworks are finished. I have them here.â
âExcellent,â Xiao Ming said. âGive them to me right away. Niu Ben leaves for Cangzhou tomorrowâheâll need this for reconnaissance.â
Chen Qi left and returned with a small wooden box.
Inside were three pairs of circular lensesâthick in the center, thin at the edges. One set was a convex lensâa magnifier. The others were concave lenses.
Xiao Mingâs plan was simple: assemble a monocular telescope.
It wasnât just a matter of slapping two magnifiers together. Without a prism, the resulting image would appear inverted.
So instead, he combined a convex lens with a concave lens, producing a simple refractor that gave an upright image.
The trade-off? Narrower field of view. Lower magnification.
But for now, that was more than enough.
A single monocular scope, he thought, is worth a hundred scouts.