In the grass, Lawson's mind was completely absorbed by the anomalies in the ground beneath him.

Perhaps because of the addition of a little more talent, the ability has been greatly enhanced, or perhaps because of the peace of mind, Lawson activated the alchemy power almost instantly.

He pressed one hand on the wet earth, and the tentacles of his thoughts stretched out into the earth beneath him.

'The soil is fertile, rotting grass roots, accumulated fallen leaves, mineral elements, water, .......'

'Strange, how can organic matter decompose so quickly?' What's going on? Colorless and odorless, the gas that spills out of the feces is methane. The smelly, disgusting gas is hydrogen sulfide. The small ones can't be smaller, and they can barely feel ...... This is hydrogen. Full of vitality, it's oxygen! ’

'All kinds of flammable gases, plus oxygen, this is a gas bomb! ’

'Danger! ’

'The natural degradation of organic matter is definitely not possible so quickly, there must be an additional energy supply...... Only a magician can do that! ’

In a flash of lightning, several thoughts flashed through Lawson's mind.

"Magician? There's only one magician in the vicinity, and that's Dias. Romley! ”

"The gas is accumulating, but the current amount is not enough, and the place where it is accumulating is 50 centimeters underground, and even if it explodes now, it won't hurt me, so I'm safe now....... The other party's method of breaking down organic matter is quite rough and not fast, maybe I can resolve it. ”

Originally, the safest way now was to flee from the grass immediately, but Rosen found that this magician's methods were quite watery, and the idea of competing with his opponent suddenly occurred in his heart.

Thinking so, Rosen waved his hand to Mary beside him: "Sister Mary, there is a magician who wants to sneak up on me, you hold Alice and hide to the side, at least 20 meters away, and change places every half a cup of tea." ”

Changing directions frequently will prevent the mage from attacking them.

"Huh?" Mary was startled, and when she came back to her senses, she didn't care if she would infect her daughter, so she hurriedly picked up her daughter and limped away.

She was just an ordinary peasant woman, so naturally she couldn't feel the elemental restlessness underground, but she had a strong sense of awe of magic, so when she heard Rosen's words, she was really frightened, and kept retreating, and she stopped for more than fifty meters before she stopped, looking at Rosen from a distance.

On this side, Rosen's thinking tentacles extended into the soil beneath him again, carefully observing the situation underground.

"There is no shadow of the magician around, he must be hiding in a corner nearby, the field of vision is quite wide here, and he can see clearly for a hundred meters nearby, which means that he is hiding very far."

"This is a traditional magician, his thinking tentacles extend extremely far and strongly, and he can directly break the covalent bonds in organic matter! In terms of strength alone, my opponent is at least 10 times stronger than me. If you rank according to the strength in the game, it is equivalent to the level of a two-star official magician. ”

"However, although he is very powerful, his technique is very crude. There are many meaningless operations in the decomposition process, which wastes a lot of energy. The energy efficiency is less than 8%, and all the excess energy is dissipated as heat energy. But he's clever enough to control the heat to move deeper into the earth. As a result, nothing unusual is felt on the surface. ”

"The gas mixture exploded under me, as long as the amount of gas is enough, even if it can't kill me on the spot, it is enough to cripple me, plus the severe burns of the flames, with the medical level of this world, there is no power at all, so I will definitely die."

"If it were an ordinary person, it would definitely be over now, and after I died, I would definitely be said by passers-by that I had been punished by the gods, and no one would investigate the cause of my death....... The sneak attack is a good one, but alas, you're picking the wrong target. ”

If he only had the first-tier Elemental Friend talent, Lawson would definitely not say a word and immediately run away, but now, after having the second-tier Elemental Friend, his strength has doubled, and it is enough to fight this magician.

With this in mind, Rosen's mind cut into the combustible gas that had already been generated.

"There is a cavity 50 centimeters underground, and there is not much gas stored at the moment. At standard air pressure, half a liter of methane, a quarter of a liter of hydrogen sulfide, half a liter of hydrogen, and a quarter of a liter of oxygen are less. In order for these gases to have explosive power, they must be mixed evenly beforehand. If there is only one contact surface between each other, then it can only burn quietly. ”

"The opponent is stronger than me, I can't stop his magic, but I can separate the gas."

Methane, hydrogen sulfide, and hydrogen are all reducing gases, and the two can be safely mixed together. Oxygen is an oxidizing gas and is a necessary condition for the combustion of the first three.

Simply by classifying, there was only one thing left for Lawson to do, and that was to purify the oxygen stored in the underground cavities.

In this way, the contest between Lawson and the magician has become very, very unfair.

The magician is remotely controlled, and there are four or five chemical reaction processes under control, and a lot of useless work is done on the way, and it is still a very mind-consuming multi-line operation.

Rosen's control distance is only half a meter, he only controls a physical reaction to 'purify oxygen', and consumes at least two orders of magnitude less energy than a magician!

All in all, Lawson won outright.

This is the battle between magicians, and the greatest reliance is never strength, but wisdom!

In a matter of seconds, Lawson had finished purifying the oxygen, and the oxygen in the gas mixture in the underground cavity was condensed into a very pure mass by him, and the oxygen was surrounded by various combustible gases.

"Pure purification can only prevent temporary danger, and these gases must be burned and consumed, which is the real safety."

The process is equally simple.

Rosen's thinking tentacles are set on the contact surface of oxygen and mixed combustible gases, here there is oxygen on one side and methane-based gas mixtures on the other, and what Rosen has to do is to ignite them.

'The collision method is enough to complete the ignition mission. ’

Previously, he used the collision method to nitrate glycerin, but now he uses the collision method to ignite methane and hydrogen, the latter of which does not require additional calculations and control, and just hits randomly.

This is a hundred times simpler than making nitroglycerin.

Rosen focused on his mind and quickly gathered a large number of fast-running molecules, but the speed of these molecules was still not enough, but it didn't matter, Rosen could speed them up.

After speeding up several times, Lawson thought to himself: "It's probably okay." ”

Under his control, a large number of high-speed flying methane and oxygen molecules collided head-on.

'Bang~' Lawson subconsciously said aloud.

At the microscopic level, two batches of high-energy molecules slam together, shattering each other's structures, releasing energy stored in chemical bonds, and after a series of complex processes, recombining into water and carbon dioxide, which are more structurally stable.

The energy that is released accelerates more molecules, more collisions occur, positive feedback occurs, and the scale of chemical reactions increases exponentially.

In an instant, the intense chemical reaction spreads from the microscopic to the macroscopic realm.

'Bang~' There was a soft soft sound, and in the underground cavity, a light blue flame appeared out of thin air.

This flame is very peculiar, because there is less oxygen, more methane and hydrogen, so at first glance, it does not look like methane and hydrogen are burning, but more like oxygen is burning.

Once the ignition was complete, Lawson had less to do than one step left to purify the oxygen.

In the following time, the magician hiding in the shadows continued to decompose combustible gases, but the oxygen in these gases was immediately purified by Rosen, burned, and degraded into harmless water and carbon dioxide, while releasing a large amount of heat.

In the cavity half a meter underground, the oxygen mass burned quietly for more than twenty seconds, and then it was exhausted.

Lawson is not in a hurry, just waiting for the magician to decompose the oxygen, he decomposes a little, he purifies a little, burns a little.

This goes back and forth, and time passes minute by minute.

Slowly, Rosen found that his opponent's strength was getting weaker and weaker, and the rate of organic decomposition was getting lower and lower, and in a few cases he even made low-level mistakes. This discovery made Rosen's heart move: "There are so many mistakes, which means that the opponent's strength has been overconsumed and he has collapsed." ’

After a while, Lawson suddenly felt that the oxygen was a little uncontrollable, and he tried to gather them together, but the things ran out as hard as they could, as if they were being dragged by something.

Lawson was stunned for a moment, and then he figured it out: "Hmm~ Finally found out that something was wrong~ Hehe, if you want to rob, then grab it." I'll see how long you can hold out! ’

From beginning to end, Rosen was only refining oxygen, consuming very little energy, and with the support of the second-layer elemental friends, he had a good time and did not struggle at all.

At this time, he faced his opponent head-on, and he was completely at ease.

Lawson concentrates on snatching control of oxygen with the magician.

His strength is weak, but he completely crushes his opponents in terms of fineness, and is supported by the theory of quantum electrodynamics, and his manipulation of microscopic particles is unfathomable and unpredictable.

The magician's strength is extremely strong, an order of magnitude higher than Rosen's, but he is already close to prostration, and his techniques are not good, ten percent of the power is used, at least ninety percent is in internal friction, and the remaining one percent is always used inaccurately although it is used on the right path.

In the underground cavity, the forces of the two sides came and went, entangled and interfered, and after a battle, they turned out to be evenly matched.

The magician seemed unwilling, and suddenly increased his strength.

Rosen immediately felt that a large amount of oxygen was taken away by him, and he was in a state of flux, and he had a strong competitive spirit: "If you want to press me strongly, hehe, I'll steal the beam and change the pillar!" ”

He always knew that his purpose was not to compete for oxygen, but to separate it.

When the other party pulled away the oxygen, Rosen's attention immediately shifted to the combustible gases such as methane, and then pulled the reducing gases back.

After some operation, oxygen and flammable gases were reversed, but they were still safely separated.

At this moment, Rosen clearly felt that the opponent's strength suddenly paused, and half a second later, a series of low-level mistakes suddenly appeared, and after another second, the opponent's strength disappeared without a trace.

Lawson was a little melancholy: 'Uh~ just left? ’

Finally, a magician opponent came, and he was playing on the rise, but the opponent didn't say hello, and suddenly stopped playing.

'It's boring~It's really boring~' Lawson sighed repeatedly.

At the same time.

About two miles away is a grassy hill village, with wooden houses halfway up the mountain.

A man in a heavy cowhide armor robe was standing in the center of the room, drawing a circle one meter in diameter under him, with an equilateral triangle in the middle of the circle, and a wooden stick stuck in each of the three vertices of the triangle. The sticks are about 1 meter high, with thick arms, a simple style, and a transparent crystal-like stone that glows at the top of the pillar.

The man looked to be in his mid-30s, with a gloomy face and brown hair, and he stood there motionless, his eyes kept closed.

Suddenly, the wooden stick next to the man made a cracking sound of 'click~click~', and the sticks cracked into many cracks, and one stick even broke into two directly.

'cough~cough~cough~~~~'

The man suddenly let out a violent coughing sound, and he couldn't stand on the ground, so he could only half-kneel on the ground. Coughing and coughing, he opened his mouth and 'wow', spitting out a large mouthful of black blood.

'For...... Why is this happening?! ’

He finally couldn't hold it anymore, his eyes went dark, and he rolled to the ground and fainted.