Qin Zhaoyue observed the reactions of the three people in the room, trying to figure out if the story was convincing.

From fireworks to gunpowder, this process took hundreds of years in the previous life.

The recipe is actually very simple; after watching so many time-travel dramas and reading so many novels, it has almost become a standard practice.

Gunpowder is like a Pandora's box; before it is opened, it is entirely under Qin Zhaoyue's control, entirely at her whim.

But once it's opened... things will definitely spiral out of control.

Yes, definitely.

With the war in the north border region becoming increasingly tense, what would happen if such a terrifying weapon appeared in the world?

War will enter a completely different dimension.

Having suffered a great loss, the Northern Shuofeng Dynasty will surely try every means to research and seize the formula for gunpowder.

All factions will work hard to develop stable explosives and muskets, which will probably be available soon.

In an era of martial arts and cold weapons, Qin Zhaoyue could accept it and adapt to it without difficulty.

But what if we enter an era of unregulated, rampant growth of firearms...?

Qin Zhaoyue sighed again, looking at the three people in the room with an unprecedentedly solemn expression.

"I am absolutely certain that the black powder is enough to destroy the dam and complete the flood discharge at the originally planned dredging point, but!"

Her voice suddenly rose, and her gaze swept across the faces of her elder sister, Meng Jian, and Sui Mo. "I have two requests."

Upon hearing the phrase "absolute certainty," all three were astonished.

They had all spent some time with Qin Zhaoyue, and even Meng Jian, who had spent the shortest time with her, believed that he had a fairly clear understanding of the sixth princess.

Such a confident tone didn't sound like something she would say.

Moreover, it was a major event: destroying a five-zhang-thick rammed earth dam and successfully completing the flood discharge.

“Zhaoyue,” Qin Zhaoqiong began hesitantly, “what you called absolute certainty…”

Qin Zhaoyue abruptly interrupted her, "That's right, I'm absolutely certain."

There was a moment of silence before Meng Jian spoke first, "Tell me about those two conditions."

"First, we need to have Meng Tong put on a show."

Whether it's by harnessing the power of heaven and earth or by suddenly unleashing a divine ability, it's you, not gunpowder, that completed the flood discharge.

Before they could react, Qin Zhaoyue immediately made her second request.

"Secondly, you will all forget that you ever came into contact with such a formula afterward, and you must not reveal any information about it."

If word gets out, even if His Majesty asks in person, we'll have no choice but to deny it.

Everyone was somewhat prepared that the conditions that made her so cautious were not ordinary, but after actually hearing them, they still felt very strange.

"Zhaoyue, why is this?"

Qin Zhaoyue raised an eyebrow. "It's very simple. If you can't control the black powder, then nobody can."

It shouldn't have existed in the world; it was merely an accident.

There are only these two conditions.

Yes, I can do it. I can provide the prescription. It's not difficult to prepare, and the dredging will definitely be completed today.

If I can't do that, then pretend I didn't say anything. How far the flooding in Mingyan County goes is none of my business.

It sounds resolute, but the most resolute part is yet to come.

"If the three of you outwardly comply but inwardly defy me, I, Qin Zhaoyue, swear that I will dedicate my entire life to exacting my revenge."

The whistleblower, your family members, and all forces that obtained the black powder will be subjected to relentless and unscrupulous retaliation.

If you want to bring your dynasty to its utter ruin, you are welcome to try.

No one expected Qin Zhaoyue to say such a thing.

But compared to her frantic words, her expression and tone were calm, as if she were simply stating a self-evident fact.

His eyes were a deep, dark pool, like a bottomless abyss.

At this moment, Qin Zhaoyue felt completely unfamiliar to the three of them, and even a little...fear!

For a moment, you could hear a pin drop inside the tent; the air seemed to become incredibly thick, enveloping the three of them and making it hard to breathe.

As for Qin Zhaoyue, she simply lowered her eyes and concealed her gaze, as if she wasn't the one who had just uttered that terrifying threat.

“I agree!” Qin Zhaoqiong spoke first.

She was most skilled in military affairs, and upon hearing her sixth sister's description, the first thing she thought of was its use in war.

As for deeper levels, there's no need to ponder them.

During this period, Zhaoyue not only gave her a series of surprises, but also revealed her true nature hidden beneath her lazy exterior.

The formula that made her put aside such harsh words to protect... Qin Zhaoqiong decided to trust her judgment.

With a clang, the sword was drawn; the right hand held the sword upright, pointing to the sky, while the left hand was extended downwards in front of the chest.

"I, Qin Zhaoqiong, swear to heaven and earth that I will never reveal the black powder formula in this lifetime."

If this oath is broken, may the martial arts world collapse and the nation's fate perish!

A resounding statement!

If Sixth Sister wanted to make a vow, then she would use the most ruthless vow to cut off her own escape route!

Qin Zhaoyue looked at her, their eyes met, and this was the first time their paths crossed without any teasing, pretense, or pretense.

The coldness in his eyes subtly dissipated; this feeling of being trusted... was quite nice.

Meng Jian was stunned, never expecting the princess to make such a resolute vow.

He sighed, reached into his robes, and pulled out a three-inch square black iron token.

Its sharp edges are like those of an axe or chisel, and its serrated edges resemble the shape of a war halberd. The character "蒙" is engraved in the center.

"I, Meng Jian, swear by the family token that I will never reveal the black powder formula in this lifetime."

If this oath is broken, may the Meng family ancestral hall collapse and the lineage die out!

The eldest princess swore an oath to heaven and earth, to the Great Qian Dynasty, and to martial arts; what recourse did Meng Jian have?

He murmured to himself, "I can only say that I have failed my ancestors."

The two completed their vows, leaving only one person remaining in the room.

Sui Mo smiled bitterly.

She was His Majesty's personal guard and could not hide anything from him, but the Sixth Princess's request completely violated this principle.

The crime of deceiving the emperor... But!

Before leaving the capital, he received an imperial edict in the Imperial Study: He was to obey the orders of the Sixth Princess on this trip.

So, it shouldn't be considered deceiving the emperor?

"Why would I, a mere centurion of the Azure Phoenix Guard, need to..."

Under these circumstances, there is no point in hiding one's identity anymore.

Muttering to himself, Suimo reached into his robes and gently took out a purse.

With a coarse linen base, the original blue has faded to grayish-white, and cotton wadding balls accumulated over the years float between the warp and weft, clearly indicating that it is an old item.

Her fingers gently touched the embroidery thread, which had faded to a brownish-red color, as if she were holding a rare treasure.

What makes her worthy of sharing a vow with the Princess and the Meng family?

It neither represents the dynasty nor has a powerful family, and its own influence is insufficient.

Exhaling again, Suimo slowly spoke:

"I, Huqin, swear by the embroidery purse of my deceased mother, that I will never reveal the black powder formula in this lifetime."

If I break this oath, may I die without knowing where I am buried, and be reborn as a wandering ghost for all eternity, never to see my mother again…

She raised her head to look to her side, her clear, cool eyes seemingly veiled in a thin mist, "Huqin is my real name..."