Pei Yun said while doing things in his hands: "Is the saltpeter ready?" ”

Qin Qi'er: "Ready." ”

"That's good." Then Pei Yun thought of something again, and then said: "It's summer soon, and you can have one more money-making business, guess what this saltpeter can be used for." ”

Qin Qi'er said casually: "Make food?" ”

There is some basis for saying this.

In the past, Pei Yun made salt, sugar, and even husked rice.

Pei Yun: "That's right, but not only can it be eaten, but it also has other effects." ”

Qin Qi'er: "Son, don't hang on to the appetite of the slave family." ”

"This thing really makes people have a better appetite in the summer, and this thing is ice."

"Ice?"

Pei Yun: "Yes, saltpeter can be used to make ice. ”

Qin Qi'er: "Can there be ice in summer?" ”

As he spoke, his eyes lit up.

What a treat it would be to have cool ice on a hot summer day.

There is ice in the summer, and if it were someone else, it would definitely be considered nonsense.

But he is a childe, and what the son says will be done.

"The way to make ice from saltpeter is very simple, put the big and small basins together, the big pot contains saltpeter, and the small pot contains water, so it's okay, you can give it a try."

"Then the slave family will give it a try."

Soon two pots of different sizes were found.

Just according to what Pei Yun said.

Two basins are set together, the large basin holds saltpeter, and the small basin contains water.

Next, it's time to witness the miracle.

Under Qin Qi'er's stunned, the saltpeter sucked the heat from the water, and when the heat dropped low enough, it began to freeze.

"It's done, it's done."

Qin Qi'er was very excited.

The miracle in front of her was caused by her, how could she not be excited, of course, if Pei Yun didn't tell her the way, she wouldn't have been able to do it.

Spring is not the season to eat ice, but Qin Qi'er still eats a click.

It was supposed to be winter before there was ice, but winter was so cold that no one would be abused to eat ice.

But if this ice is eaten in spring, it is a refreshing heart, and if it is changed to summer, it will be even more refreshing.

Pei Yun: "I said, ice can not only be eaten, but also have other functions, if I use ice to make arrows, do you say can you kill people?" ”

Qin Qi'er was puzzled: "Ice arrow? Homicide? ”

I pinched the ice cube in my hand, the ice cube is very hard, if it is made into a sharp enough arrow, then, can it kill people?

It's hard and sharp enough, and if you really want to make ice arrows, of course you can kill people......

The Qi Mansion and the Liu Mansion are opposite each other, separated by only one street from each other.

Just tonight, someone left the Qi Mansion and came to the Liu Mansion.

The people of the Qi Mansion entered the Liu Mansion like this, but no one could find out.

In addition to the protection of the Liu Mansion, which is only a rough person who wields knives and guns, it is also the ability of the people of the Qi Mansion.

Something like tonight is not unique.

Long before this, the people of Qi Mansion stepped on the spot again and again, but they didn't let the people of Liu Mansion find out.

You must know that one side is a rough person, and the other side has undergone modern special training.

And tonight, the person who went out was still the strongest one.

Qin Qi'er was wearing a night robe and carrying a long box behind her.

According to the route, I bypassed the layers of protection and came to the pre-selected location.

Tonight, Qin Qi'er acted alone, but before that, Qin Niangzi's army infiltrated Liu's Mansion again and again, so as to formulate a safe route and select the most suitable location.

It seems that he is alone tonight, but once there is danger, the Qin Niangzi army, which is ambushed outside the Liu Mansion, will pick up Qin Qi'er and evacuate safely as soon as possible.

They all said they were going to kill someone.

Qin Qi'er came this time to kill Liu Shiren.

This is a rare high point in Liu's Mansion, relying on special tools and ropes, Qin Qi'er easily climbed to the top.

Looking down on his stomach in this place, he can just see where Liu Shiren lived.

But you know, the distance between them is almost 300 meters.

The windows were open and the lights were still lit in the room.

And Liu Shiren fell asleep.

Open the window and light up the light to sleep.

It has to be said that this is a quirky habit.

There will be such a habit, which is not unrelated to a person who has done too many things with a bad heart.

If you do too many bad things, you will be afraid of the dark and confined spaces.

But it is this kind of psychology of doing bad things that will put an end to Liu Shiren's life.

Through the window, under the lamp, Liu Shiren can be seen lying on the bed.

After determining the location of the goal, Qin Qi'er began to prepare.

Untied the box behind it.

The box opened up and was filled with parts.

The good thing is that it's the parts, not the parts.

If it's a part, it's really hard to assemble, but the parts are much easier, just find a good interface for assembly.

With Qin Qi'er's preparations.

It can be seen that this is a crossbow, but it is different from the crossbow I have seen before.

Nor is it a folding crossbow.

One more strange handle.

The crossbow body is to be longer.

On the bow head, two more brackets are opened and fixed to the ground.

It looks like it's going to do something with a crossbow.

And the target is Liu Shiren's residence.

It's just that the distance between them is nearly 300 meters.

What can you do at a distance of three hundred meters.

The preparations were completed, and Qin Qi'er had an extra crossbow with a rifle butt and a tripod in his hand.

The distance of 300 meters is beyond the effective distance of a normal crossbow.

But what if it's a sniper crossbow.

Yes, the crossbow in Qin Qi'er's hand has the effect of sniping.

This is also the new crossbow that Pei Yun dismantled and made after dismantling the folding crossbow.

Speaking of the workmanship materials of this crossbow.

Make a comparison.

With such a crossbow, you have to add all the crossbows owned by the Qin Niangzi Army to be eligible for comparison.

At a distance of 300 meters, the weapon is a crossbow capable of sniping.

The next thing to do is clear.

It was to kill someone, and the person who killed it was Liu Shiren.

You can't shoot Liu Shiren with a normal crossbow arrow, which will leave evidence.

If you want to kill people without knowing it, you need to use another kind of crossbow arrow.

Qin Qi'er took out a box wrapped in cotton cloth from her arms.

The box opened, and a chill came out.

I saw that in the open box, there were three ice arrows lying down.

Ice arrows are short, delicate, and extremely sharp.

It is this ice arrow that will kill people without knowing it.

The distance of three hundred meters is really far.

You should know that there is no matching scope.

It is also not used to measure wind and humidity...... of instruments.

can only rely on Qin Qi'er.

Qin Qi'er was doing the final adjustments.

Then take out an ice arrow and wind it.

At this time, Qin Qi'er entered a strange state,

At this moment, she gives the impression that she is one with the crossbow in her hand and the surrounding environment.

And that's not all, it's also about targets up to 300 meters away.

Minutes and seconds passed.

Liu Shiren, who was asleep, suddenly felt a creepy, he wanted to shout loudly, but there was a heart-piercing pain in his heart.

An ice arrow, over a distance of three hundred meters, pierced his heart.

The ice arrow left a wound on his heart, no bigger than a finger, and then sank into the bed where he was lying.

And because it is an ice arrow, once it is melted, there is no trace.