Lu Ban discovered that with the illumination and heating of the fire, the words in the blood gradually disappeared and turned into ordinary blood.

It is probably true that the plague is afraid of sunlight and high temperatures.

"Frost brings low temperatures, and Eternal Night brings darkness. These two are exactly what the plague needs. At the same time, the plague will make the Black Castle's guards sparse, causing more non-combat casualties, making it more difficult to resist Eternal Night and Frost..."

Lu Ban looked at the fire and muttered to himself.

"The three demonic waves have formed some kind of subtle cooperative relationship. Why didn't they do this before?"

According to Jonah, the demonic tides and the Black Forest have been invading humans for thousands of years, at least once a year. So during such a long period of time, have these demonic tides never thought of uniting?

“Is this because of increased pollution, or is there another reason?”

Considering the world he lives in, strange things are gradually reviving, so it is reasonable that abnormalities will occur in the Kingdom of Darkness.

At this time, Lu Ban heard a noise coming from outside.

He stood up and looked out over the fortress.

The rangers were holding longbows and lighting their arrows.

Hundreds of archers, under command, fired rockets into the depths of the Black Forest.

Arrows fell like meteors, and after a while, flames were seen burning deep in the forest.

Round after round, huge fires soon broke out in the dark forest in the west. The flames formed a wall of fire, spreading forward and backward.

“What is this doing?”

Lu Ban asked Birmingham who was at the bottom of the watchtower.

"You're okay... We're burning the Black Forest. The monsters from the Demonic Tide will hide in the forest, so we need to burn the trees in the Black Forest."

Birmingham was relieved to see that Lu Ban was fine, and he explained.

"Because the trees in the Black Forest grow very fast, they can grow back from the original debris in just one day, so we usually start burning the trees around the fortress one to half a day in advance."

"oh!"

Lu Ban responded.

Thinking about Earth, people have carried out various propaganda to protect forests and restrict industrial development. They even invited a little girl who has not even finished school to be an environmental ambassador. But when they arrived in the Kingdom of Night, humans still tried various ways to destroy the forests. If the environmental ambassador saw this, she would probably cry.

"It's a pity that we don't have the tools we have on Earth here. Otherwise, let alone the forests in this area, I'm afraid even the entire Black Forest wouldn't be able to sustain the amount of logging that humans do in a year."

When Lu Ban was a student, he read an article about tropical rainforest protection in his textbook. It said that millions of hectares of rainforest were destroyed every minute. He pressed the calculator and found that at this rate, the rainforest would be gone in just a few months. So Lu Ban, who loves environmental protection, immediately raised this question to his teacher.

But the teacher avoided the question and did not answer it. Lu Ban felt that the teacher must not be a person who supports environmental protection, otherwise he would not have turned a blind eye to this issue.

So, Lu Ban wrote a letter to the textbook editorial committee to explain the problem. Not long after, the textbook was revised and that article was actually deleted from the textbook!

Lu Ban feels that there are too many people in this world who do not pay attention to protecting the environment!

"If we can travel freely between foreign lands, we can transport the wood from the Black Forest to foreign lands that need it more, or let these forests grow in barren deserts like the Wasteland. Maybe one day, the desert in the Wasteland will also be green."

Thinking of this, Lu Ban suddenly felt motivated.

"The rapid growth of these forests is probably the result of pollution. If we can collect and preserve these polluted trees, then we should be able to plant trees next time we go to the wasteland."

"It only takes one day to grow from the burned debris. If these things are used in food, can we achieve a yield of 10,000 kilograms per mu?"

"No, we have to find a way to introduce it."

The farming instinct engraved in Lu Ban's DNA made him extremely excited.

"?"

Birmingham looked at Lu Ban, who was inexplicably full of expectations, and felt puzzled.

The fire is still going on.

By daybreak, the fire had covered most of the Black Forest as far as the naked eye could see.

Lu Ban finished his shift and did not feel sleepy, but came to the border of the fortress.

The trees surrounding the fort were not burned, mainly because if they burned there, the fort might be affected.

This also gave Lu Ban the opportunity to collect materials.

He took off the leaves and branches of the thick tree and preserved them properly, planning to study them carefully when he had the chance.

Suddenly, Lu Ban saw something flash by in the depths of the forest.

"Ordinary monsters will just flee at this time."

Jonah's voice came, Lu Ban turned his head and saw the heavily armored mage standing behind the fortifications.

"The reason why there won't be two waves of demons appearing at the same time is because these demons repel each other. They are created by different gods and are naturally hostile to each other."

After hearing Jonah's words, Lu Ban carefully returned to the fortifications.

"The inspection of the rangers is complete. No more people infected with the plague were found. Perhaps the plague was transmitted from the birds."

Jonah glanced at the sky and saw some strangely shaped birds fleeing in the black clouds caused by the burning flames.

"The observation results from the Gray Tower have come back. Frost is indeed in this demonic tide."

His tone was relaxed, as if he was discussing today's breakfast. Perhaps it was because the simultaneous appearance of three demonic waves was completely beyond his imagination. Because it was too outrageous, he did not feel any intuitive fear.

"What do you collect these for?"

Jonah glanced at the leaves and branches in Lu Ban's hands.

"Be prepared to do some research."

Lu Ban spoke frankly.

"It's useless. The Grey Tower once tried to study the Black Forest from a magical perspective, trying to find a way to contain it, but the final conclusion was that it was not just the plants, animals, water, and land that were polluted, but everything in this area."

Jonah smiled.

"Besides, you don't have the chance to study them. Theoretically, we are all dead now."

Under the attack of the three demonic tides, it is impossible for the Black Tower and the Gray Tower to organize an effective resistance in time. During the three-day long blood moon, the front line like the Black Castle will be completely destroyed by the tide of demons, and the Black Pine Town, the cities outside the forest, and the civilians will all be wiped out under the wash of the demonic tide.

"wrong."

Lu Ban suddenly spoke.

"You think we can hold on if we try harder? No, you haven't experienced the demonic tide, so you can't imagine that kind of despair..."

"No, what I mean is that even if there weren't three demonic waves attacking at the same time, most of the people in this fortress would have died."

Lu Ban corrected.

“…That’s true.”

Jonah smiled self-deprecatingly.

"We're all going to die anyway, so we might as well drag some people down with us."

Lu Ban put away the grass and trees and looked into the depths of the black forest.

A wolf howl was heard.