Cave mouth.

Rosen did not rush to light the firewood, he took out the flour and water bladder first. He didn't care about the taste, he just ate a mouthful of raw flour, drank a sip of water, and ate half a catty of raw flour raw.

The main component of flour is starch, starch is a polymer polysaccharide, and after hydrolysis, it is glucose, which is the main source of energy for the human body.

He was about to use alchemy desperately, and before that, he naturally had to replenish his body's energy as much as possible.

Viken on the side sneered: "Heh~ You must have starved to death in your last life." ”

Rosen was already full, he wiped the flour on the side of his mouth, and smiled faintly: "You don't care if I'm starving to death, what you should care about most now is your own fate." ”

"I'll just watch you toss."

Rosen stopped talking, he took a deep breath, calmed down, and activated the alchemy talent.

The first step is to light the firewood.

There was already a bonfire in the cave, and although it was almost burned out, there were still many charcoal fires in the ashes, and Lawson's power rolled up sparks and ignited the firewood pile in the cave.

'Whew~Whew~'

The flames in the cave burned slowly as they spread to the surrounding firewood.

If it is left to burn freely, all the firewood in the cave can be burned, but it will take a long time, and the temperature in the cave will not rise, so Lawson must intervene halfway.

The second step is to burn it fully.

Temperature is a direct expression of energy density.

If you want higher temperatures, you need to make the energy density in the space higher.

Density ~ density ~ as the name suggests, is the amount of energy per unit of space. To put it mathematically, it is the total amount of energy divided by the volume.

This simple formula already illustrates two ways to increase energy density.

First, use a confined space to prevent heat from dissipating quickly, which is the meaning of the cave's existence.

Second, speed up the rate at which the fuel releases heat to maximize the energy ceiling.

The first point has been achieved, and the best way to achieve the second point is to make the firewood in the cave burn as quickly as possible.

Half a minute later, all the firewood in the cave was ignited by Lawson, the energy release speed was greatly accelerated, the temperature in the cave began to rise in a straight line, and the heat wave at the entrance of the cave at the top of the cave began to burst out dark red flames.

"Huh~~~~Huh~~~~"

The wind is howling.

The burning flames act like living creatures, quickly sucking in fresh air through the mouth of the cave. The air currents ruffled Lawson's clothes, and Wiken's blonde curls were ruffled.

Under the action of fresh air, the fire in the cave quickly grew larger, and the temperature in the cave rose sharply.

"Hahaha~"

Viken suddenly burst out laughing: "Little thing, is that all you have to do?" With your broken furnace, you can burn iron red at most, and you still want to burn my body? It's a dream! ”

He was right, at this moment, the black beads in the center of the cave remained the same, and the flames were fierce, but they could not destroy them.

Anne also saw this scene, but she didn't speak, just looked at Rosen, worried and expectant.

"Hahaha~~~"

Rosen also laughed out loud: "Viken, don't get complacent too early, I haven't started yet!" ”

Step 3: Oxygen-priming!

Combustion is a chemical reaction, and the more intense the reaction, the more energy is released.

How can I increase the intensity of the severity? First, there are sufficient combustibles. The second is that there is enough oxygen. Third, the two sides should engage fully.

With the help of the natural iron-making furnace of the cave, the first and third have basically reached their limit, and only the second one is left, and there is still a lot of room for improvement.

In the natural environment, firewood burns at a temperature of just over 800 degrees Celsius. If you build a stove and add a bellows, it can be raised to about 1200 degrees. But if firewood is burned in pure oxygen, the combustion will incandescent and the temperature will soar to as much as 1,700 degrees.

At 1700 degrees, it can already melt most metals, and even metal titanium can't stop it.

Raising the oxygen concentration is a trick that the blacksmith's bellows can't do, but Lawson can!

"Oxygen Convergence Cave! Oxygen Convergence Cave! ”

With all of his energy on the air around him, Rosen used all his power to activate the elemental manipulation, pushing the surrounding oxygen into the cave mouth and feeding the cave with firewood to burn.

It is true that Lawson's current ability is quite limited, but he is desperate to fight!

He clearly felt that his spirit was completely integrated into the air around his body, and for a moment, he even had the feeling that he had become the master of this air.

He tried his best to grasp the energetic currents and send them into the cave with all his might.

He also clearly felt that the starch in his stomach was digested into glucose, which entered the body's bloodstream and quickly converged towards his brain. In the brain, glucose and oxygen rush into the mitochondria in the cells, burning wildly, converting a large amount of ATP for the brain to use.

'Knock~Knock~Knock~'

My heart was beating violently, my head was hot, and sweat was squeezing out of my pores like a waterfall.

"Ah~~~~"

Rosen roared wildly.

With full preparation, Rosen's power was brought into full play.

Under his interference, the oxygen concentration in the air in the cave increased several times!

"Boom~~~~Boom ~~~~~"

Suddenly, the flames in the cave were like a ton of aphrodisiacs, and they became unusually bright, and the light was so strong that it was impossible to look at it directly.

The flames in the cave were originally bright yellow, but now they have turned pure white, and the flames of the flames are tumbling and surging in the cave, looking not like flames, but like boiling white magma!

Even the flames that erupted from the top of the cave turned white, and they flew out more than a meter high.

Rosen knew in his mind: 'The burning is almost incandescent, and with the enclosed space of the furnace, the temperature in the center is estimated to be close to 2,000 degrees Celsius, which should be enough. ’

Anne stood a few meters away from the entrance of the cave, and she could clearly feel a rolling wave of heat.

She stood behind Rosen in a daze, her eyes unblinking at the flames in the cave, and she felt an indescribable sense of fear in her heart.

She had never seen such a terrifying flame. At this moment, Lawson, who was standing at the mouth of the cave and manipulating the flames, was obviously a head shorter than her, obviously only a 14-year-old boy, but she saw the temperament of the King of Flames in him.

A phrase suddenly came to her mind: 'Steel is subject to his will, the flame is under his lordship, and the world trembles before his power.' ’

'Apocalypse prophecy?' Anne was in a trance.

After burning for less than 10 seconds, there was a very peculiar smell in the air, very smelly, similar to plastic burning, mixed with a disgusting fishy smell, smelling it for a long time, Lawson felt sick to his stomach, and couldn't help but want to vomit.

But he had to deliver oxygen to the cave, so he had to endure it. Anne beside him also smelled it, and her sense of smell became more sensitive, and soon she couldn't stand it anymore and crouched aside and vomited.

Viken at the mouth of the cave had obviously never seen such a fierce flame, his eyes were wide open, and there was a thick fear in his eyes, and he let out a woman-like scream: "No~~~~~ how is this possible! How is this possible! ”

"Annie!" Lawson shouted.

"I'm here!" Anne reflexively stood up.

"It's time to say goodbye to Viken!"

"No~~~~ I can't die! I can't die! Viken continued to scream.

Anne didn't care about him, she stepped forward, grabbed the thick golden curls on Viken's head, and threw it into the white ruin with a slight force

In the flames.

"Die!" Anne shouted.

She firmly believes that the white flames in the cave can destroy everything!

Viken's head spun in the air, and his indistinct roar could be heard in the air: "....... Apocalypse..... He must be the Apocalypse....... Ah~~~~~h

He was engulfed in flames, and his roar instantly turned into a scream that lasted only a few seconds before disappearing without a trace.

After 3 minutes, all the firewood in the cave was burned away, leaving only some white ashes. Because of the terrifying heat, the rock walls around the cave were burned and melted, hanging down like candle oil.

Rosen was drenched in sweat and almost collapsed.

At this moment, he suddenly felt a slight shock in his heart: 'Alchemy Talent Tree!' ’

The vision in front of him lit up slightly, and the talent tree appeared.

Compared to before, there are two more things in the talent tree, the first is the free talent point, after killing Viken, Lawson gains 1 point of his own talent, which is exactly the same as in the game.

Another thing that is not available in the game is power proficiency.

Rosen noticed that underneath the Elemental Friend talent, a progress bar appeared with 78% lettering on it. After clicking on the progress bar, a description appeared: 'Every time you use alchemy power, you can increase the proficiency of the corresponding talent. When you reach 100% proficiency, you can increase the level of the corresponding alchemy talent. ’

So, there are two ways to get free talent points, one is to kill monsters, and the other is to use them as often as possible. Not bad! That's pretty good! Rosen breathed a sigh of relief, only satisfied.

As long as he has the alchemy talent tree to rely on, then even if this world is hell, he has the confidence to break back and forth.