Jin Yan completed the design and immediately took the drawings to find the eldest princess mother and daughter.

She handed it to the eldest princess.

The eldest princess glanced at it a few times, her pupils gradually dilated, she glanced at Jin Yan in disbelief, and then took the drawings and looked at them with the eldest princess.

"That's what you did all day and night without closing your eyes?" The eldest princess asked.

The eldest princess can see the subtlety of this drawing, not to mention the eldest princess who has been "battle-hardened".

When she was young, she liked to dance with knives and guns, and after she got married, she often discussed the improvement of weapons with Dingguo Gong, and she was no stranger to these.

The value of this drawing can be seen at a glance.

Jin Yan yawned, "Well, my grandfather gave me a crossbow bolt before, and I was curious about its structure, so I took it apart and wrote down the internal structure. ”

"And then you made improvements to it?" The eldest princess also couldn't believe it in her tone.

If you don't have a talent for it, how can you just tear it down and remember that complex structure?

Not to mention that Jinyan is also innovative.

Jin Yan nodded, "Listen to my father's meaning, something big may happen in Beijing next, he and his brother are in danger, although his grandfather is in the military camp, but he can't guarantee that he is surrounded by his own people, if this can be done earlier, it can also be handed over to them for self-defense, but unfortunately the heirs of the Mo family back then are no longer there." ”

The eldest princess glanced at her henchman, and soon she went out.

After a while, she approached with a middle-aged man with one eye.

The eldest princess handed over the drawings to One-Eyed and instructed, "Can you make it in the shortest possible time according to what is drawn above?" ”

The man glanced at the drawings, and his eyes fell on Jin Yan again.

The handwriting on the dimensions and introductions on this drawing is clearly the handwriting of the small county lord.

Could it be that this drawing is from the hand of the little county lord?

However, he didn't ask a word, only said that he could make it.

The eldest princess said, "Then hurry up and do it." ”

After the man went down, a somewhat familiar figure suddenly appeared in Jin Yan's mind, "Grandmother, he ......"

The eldest princess nodded slightly, "You are not mistaken, he is the heir of the Mo family beside your grandfather." ”

There were many capable people who were interested in serving the country together, but after years of conquest, many of them were also shrouded in horse leather.

And those who survived were also attacked and assassinated to varying degrees because of "too brutal methods" and "bloodthirsty".

In order to protect the rest of the people, they can only be allowed to fake their death.

After listening to this, Jin Yan also had mixed feelings in his heart for a while.

She didn't ask much, but after knowing that the heir of the Mo family was in the eldest princess's mansion, she went to him if she had anything to do.

After the eldest princess and the eldest princess found out, instead of stopping Jin Yan, they provided a lot of convenience for her to ask the Mo family heirs for advice.

Three days later, the new sleeve crossbow was sent to Gu Yong's father and son and Dingguo Gong respectively.

"You say, this is made by Yan Yan?" Gu Jinhe couldn't put it down, looked at the sleeve crossbow handed over by the guard, and immediately tried it when he got it.

Seeing Gu Jinhe's finger on the top of the mechanism, the guard was suddenly frightened beyond recognition, and shouted urgently: "The eldest prince is careful!" ”

It's a pity that it's still a step too late.

I heard the sound of breaking through the air, and nine arrows were firmly rooted in the opposite wall and pillar.

And Gu Jinhe, who was not the slightest defenseless, was also impacted by the momentum of the sleeve crossbow and staggered back several steps before standing firm.

Gu Jinhe's eyes were amazed, and he was about to study the sleeve crossbow well, but there was a sudden chill behind him.