When the strange sound just came from this wall, Mu Qingnuan was stunned and turned her head to look.

Rong He frowned slightly, and then he heard the door knock again, and then Fu Sheng walked in, "Master, it's the negligence of your subordinates." ”

Fu Sheng said, walking towards the wall where strange items were hanging. Just as he stood in front of him, he raised his hand and landed on a long table under the wall, on which was displayed a switch that resembled some strange magic.

Fu Sheng raised his head to press one of the switches, although he didn't know what the principle of this thing was, Mu Qingnuan could probably guess that Fu Sheng was going to turn off the sound......

"Wait!" Mu Qingnuan stopped it with a loud voice.

Fu Sheng made a movement in his hand, glanced at Mu Qingnuan, and then looked at Rong He.

"Let's get out." Rong He commanded.

"Yes." Fu Sheng left again, and the voices in the hall kept coming. And until the curtain fell, even if you couldn't see what was going on in the hall, you could hear from the sound that the people who had gathered had dispersed......

"Nuan'er." Rong He saw Mu Qingnuan with a mocking look on her face and said loudly.

"I'm fine." Mu Qingnuan raised her eyes to look at Rong He, smiled, and the mockery in her expression faded, "Someone is going to send it to the door for me to clean up." ”

Rong He, who was still a little worried, couldn't help but smile when he heard Mu Qingnuan say this, he forgot that his Nuan'er was not a canary, but a cat that could scratch people......

"If you don't have a long eye, just hit it." Rong He said, "Don't tire yourself. ”

"Okay." Mu Qingnuan nodded and smiled.

She didn't want him to make a move, first, she didn't want to rely on him for everything, she wanted to be his side, not a burden. The second is that she had expected this matter a long time ago, and she also had other plans. The people behind it do this, and they don't know who is calculating whom.

And although she didn't say what she thought, hoping that he wouldn't make a move for the time being, he didn't need her to say more, he already understood her thoughts.

It seemed that with just one look, he could understand her.

"I'm not going to let myself get tired." Maybe she'll be tired one day, but definitely not because of these people.

Rong He listened to her assurance, and then he was relieved.

Seeing that this matter was settled, Mu Qingnuan's attention turned to the dozens of iron things in the shape of morning glories hanging on the wall not far away......

"But what are these? The effect seems to be similar to that of a listening urn. ”

The listening urn is a kind of jar with a small mouth and a large abdomen, covering a thin layer of leather at the mouth of the urn, burying the urn in the ground when it is used, and "listening" to the surrounding movements, and a good listening Weng can hear the movements within a radius of several kilometers.

And the most common place where the listening urn is used is in the army, and the Ye family army is a well-known army. Although Mu Qingnuan has not really seen the Ye family's brave and good fighting, she doesn't know anything about the art of war.

But when she was a child when she went in and out of Yefu to practice martial arts, she could always hear her grandfather talk about some interesting things in the army. Among them, I have heard about this listening to Weng, who was researched during the turmoil of the previous dynasty.

At that time, the remnants of the former dynasty led people to raid the northwest region of Tianque, and his grandfather led troops to meet the battle.

At that time, the newly researched listening urn was buried at the foot of the city wall, so as to detect the movement of enemy troops outside the city. At that time, his grandfather led his troops to meet the enemy, and it could be said that he was invincible, and this listening urn played a great role......