In front, there is a pantry.

A simple cloth tent, a few square tables, and a large steaming teapot.

Lin Chen's gaze stayed on the big teapot.

It's not that he's thirsty, it's that the big teapot gives him a hint - hard can't do it, you can come soft.

Poisoned!

Up to the officials and nobles, down to the common people, they all eat, drink and Lazar.

Killers, naturally, are also in the ranks.

"If you want to poison everyone at once, you have to start with the water source. Again...... Must also be valid for Tier Masters. At last...... You have to be able to control the time of the poison. ”

With the solution, the programming is much simpler. In less than half a stick of incense, Lin Chen came up with the entire set of action plans.

After calculating the details again and making sure that there were no problems, Lin Chen brought out a few difficult points.

"The biggest difficulty is undoubtedly poisoning the water. Next, a phantom array was quietly arranged around the smoke and dust building to prevent anyone from escaping or coming in to pick up leaks. At last...... Find the right poison. If you can solve these problems, maybe, without the help of any mercenaries, you can destroy Qiuyue Hall alone!"

After a little calculation, Lin Chen decided to start with the simplest question of poison first.

For others, it is colorless and tasteless, and it can make the earth-level masters also hit, and at the same time, in order to save the lives of those high-ranking officials and nobles, the poison that can't poison people to death should be the most difficult of all problems. But for Lin Chen, it was the simplest one.

Calling up the shopping function and opening the pill sub-function, Lin Chen began to search for the pill that met these requirements at the same time and dissolved in water.

In the screen, rows of elixirs suddenly appeared.

The lowest three grades, the highest four grades, Lin Chen swept the number of pages, and couldn't help but smack his tongue. There are thousands of elixirs that meet these requirements at the same time.

Opening the introduction of the first elixir, Lin Chen immediately chose to give up.

The price is too high.

Looking at the introduction of the second elixir, it is still a matter of giving up.

The effect of the medicine is not strong enough, and if you want to poison one or two thousand people, you have to put at least five hundred of these elixirs in the water source.

It doesn't matter if you order one piece on one thousand eight hundred WeChat, but the problem is that the price of this elixir is as high as 100,000 WeChat points. Speaking of which, the price is still too high.

Then opened the introduction of the third elixir, Lin Chen still chose to give up.

To induce the onset of the medicinal effect of this elixir, it was meaningless for Lin Chen to let the other party take another elixir.

Fourth, fifth, and sixth ......

After looking at more than a dozen pages and hundreds of elixirs in a row, Lin Chen was surprised to find that none of them completely met his requirements.

Either it's too expensive and it's not cost-effective. Or, there are defects such as the duration of the drug effect is too short, the inducing effect is too cumbersome, and the grade of auxiliary materials is too high to buy.

"Looks like we'll have to find a place to take a while. ”

Lin Chen couldn't help but smile bitterly, he thought that he could find the poison he wanted very easily, but the result was ...... I was obviously naïve.

Looking up at the tea shop, Lin Chen couldn't help but pace forward, deciding to continue looking for poison while drinking tea. Lest a man stand in the street stupidly, with a glazed gaze, and mistake people for insanity.

Entering the tea shop, a faint fragrance of tea suddenly came to his nose, and Lin Chen found an empty table and sat down.

The butt had just touched the bench and stood up violently.

"Damn, I haven't used my brain for too long, it's really a little rusty. ”

Lin Chen patted his head, water poisoning is good, but compared with air poisoning, whether it is accuracy or ease of execution, it is obviously a grade lower.

Quickly call up the shopping function, open the Lingcai sub-function, enter the desired keywords, and confirm the search.

On the screen, rows of spiritual materials suddenly appeared.

Clicking on the first sweep, Lin Chen's pupils couldn't help but light up.

Qiyun grass: four spiritual materials, although the smell is bland, but it can be transmitted thousands of kilometers away. Below the Heavenly Steps, anyone who inhales the scent of Qiyun Grass will instantly fall into a coma if he inhales the fragrance of bitter spirit flowers within a day. The stronger the strength, the shorter the comatose state.

The selling price, 200,000 WeChat points.

Searching for the bitter spirit flower again, it is actually only a second-grade spiritual material, the characteristics are similar to the qiyun grass, and the smell is also plain, but the transmission range of the smell is only about 100 meters.

The selling price is 6,000 WeChat points.

Combined, less than 210,000 WeChat points.

The first puzzle was successfully solved.

Lin Chen took out a silver ingot from the storage ring space, threw it on the table, and strode towards the Smoke and Dust Building.

Behind, the owner of the tea shop, who had already walked to the table with a teapot, looked at his back stupidly. He was sure that he would give a silver ingot of ten taels to make tea money for a sitting down, which was definitely the most hearty guest he had ever met in his life.

The poison is chosen, and the next step is to apply the poison and set up the array.

Because it is transmitted by the air, it is very simple to apply poison, as for the formation......

Lin Chen called up the WeChat system, opened the shopping function, selected the formation, searched for the phantom array, and covered a wide range of four conditions, which could trap the triple master of the ground level for at least one stick of incense.

On the screen, formation patterns flashed one after another.

Lin Chen's gaze quickly swept over the price, and for a moment, a happy color flashed in his eyes.

On the sixth page, under a four-rank formation called 'Yellow Sand Formation', the amount marked on the selling price is only seven figures, and it is two dozen heads.

This 'Yellow Sand Array' only needs more than 2.5 million WeChat points.

Four-grade formation, just to buy a formation book, the average price needs more than two million WeChat points. And this four-product 'Yellow Sand Array', it is only more than 2.5 million WeChat points to buy the finished product directly.

Lin Chen searched the formation directly, originally just trying his luck, and didn't have much hope. Who knows, the system actually gave itself a surprise.

If Lin Chen is a fourth-grade spirit formation master, it is obviously more cost-effective to buy a formation book than to buy a finished formation directly. After all, after learning the formation book, you can arrange the second, third, and fourth formations in the future, and directly buy the finished formation, but you can only use it once.

But right now, Lin Chen is only a first-grade spirit array master's strength, and if he wants to successfully arrange a fourth-grade spirit array with a range that is not small, and it is in the case of the first arrangement, he doesn't have five or six days to think about it.

On the one hand, it can be used immediately, and on the other hand, it takes five or six days to set up the formation, but the same formation can be arranged in the future. For Lin Chen, the former is more cost-effective at the moment.

Without any hesitation, Lin Chen immediately chose to buy the 'Yellow Sand Formation'.

In the next second, a plan with a radius of ten miles appeared in front of him. In the center of the floor plan, a small red dot appears.

With a movement of thought, the plan within a radius of ten miles became a kilometer. The small red dot, like the building in the floor plan, is magnified five times and becomes a red spot.

Finding the location of the Yanyu Tower, Lin Chen used his mind to control the red spots covering the Yanyu Tower.

Subsequently, select OK.

In the next second, the screen disappeared, and the WeChat points decreased by more than 2.5 million.

The formation is done, as long as the poison is successfully applied, you can harvest points to your heart's content.