Everyone's eyes focused on Haoren, and Haoren nodded lightly: "Don't worry about the energy crystal, since I said it, it can naturally be provided." ”

After Wang Han handed out the list of materials to the others one by one, everyone hurriedly glanced at it from beginning to end, and they were all secretly relieved, one of the tailor girls patted her chest and said with a smile: "It's all very simple things, I thought how advanced the materials needed for magic technology were!" ”

The things on the list of materials are commonplace, such as heat-resistant canvas, which is a necessity for making tents, which almost every tailor can sew, and as for those steel pipes and metals, the blacksmiths can easily solve them.

Wang Han said with a smile: "Although the magic guide technology is good, it is not a very advanced product, at least it is much easier to understand than any electromagnetism." ”

"Do we have a rope that can withstand high pressure and has a certain endurance?" A girl timidly raised her hand and asked.

Wang Han was slightly stunned and replied: "The hot air balloon I designed can carry a hundred people at a time, otherwise there is no way to transport all the people away in a week, so the requirements for the connecting rope are relatively high." ”

The tailors looked at each other with embarrassed expressions.

"I'll do it!" Haoren said slowly: "A rope that can carry the weight of a hundred people, I think I can provide it!" ”

In the curious eyes of everyone, Haoren rubbed the ink-colored spider silk ring and launched a white spider silk the thickness of his thumb, then handed the spider silk to Wang Han and asked: "This kind of spider silk can bear a weight of 100 kilograms, and with dozens of more bundles together, the carrying capacity should be enough." ”

Wang Han pulled the spider silk vigorously, and his face showed surprise: "What a big bullet surname!" It is enough to use only forty of these spider silk bundled together! ”

Once the issue is resolved, no one else has any doubts.

The major stood up and finally clapped, "Good! So let's go back to the division of labor and cooperation now. Remember, you have to be fast! We're running out of time! ”

The others left the office one after another with excitement, and Haoren stayed the last one, and when everyone else was gone, he quietly looked at the major and asked in a low voice, "Tell me, how long can the fortress last?" ”

There were some things that he couldn't say just now, but in front of Haoren, the major didn't seem to intend to hide it, and there was a solemnity between his eyebrows: "Five to seven days!" This is already the limit, the damage to the city wall is much more serious than expected, and the attack of the spider monster has been strengthened in the past two days! ”

As he spoke, the piercing alarm bell rang again, and Haoren changed slightly, it was less than an hour since the last attack!

"I'm going to help!"

Haoren rushed out of the house, opened the wings of the fire god and rushed into the blue sky, today's weather is very good, but the black and oppressive spider tide seems to be more than in the past, which makes people's mood no better.

"Vacuum Slash!"

Hao Ren squandered more than twenty flame sword qi in one go, each sword qi could cause about six or seven hundred flame damage, which was enough to kill those ordinary people with only a few hundred combat power.

After a round of attacks, Haoren immediately returned to the city wall, put away the wings of the Vulcan, and waited for the sword energy value to recover, while receiving the treatment of the priests, although there was an afterimage technique to dodge the attack, but the number of spiders under his feet was too much, and he would always receive at least a few hundred points of damage every time he went out.

This was repeated several times, with the help of the advantage of high altitude, the little spiders who attacked the fortress suffered great casualties, although it was nothing to the entire spider sea, but it somewhat relieved the defensive pressure of the archers and mages on the fortress.

The mage's wall of fire spell turned the entire city wall into a raging sea of fire with the addition of gasoline and diesel, and the flames frantically licked and licked every spider that dared to rush in, but the effect of fire damage on the fire spider was very limited, and the ice mages used hail to shoot at the fire spider.

The archers' rain of arrows has a longer range, and their targets are those small spiders who only have a few hundred combat power, but their number accounts for at least half of them, these guys are not big, their HP and defense are extremely low, but they are like playing with their lives, and they are constantly consuming the defense durability of the fortress with their own lives!

The battle intensified, with people lying in pools of blood every second, being carried off the city, and quickly replaced, and the battle continued for a full hour, and the spider monster's offensive gradually subsided.

Everyone didn't dare to be careless, and stared at the city with weapons in hand, until the spider monster retreated a hundred meters away, then he collapsed on the ground, gasping for breath, his sideburns and forehead were already covered with beads of sweat, and his face was full of exhaustion.

On the ground in the castle, hundreds of corpses were placed side by side, some of them were severed limbs and stumps, and some of them were whole bodies with huge holes pierced through, and their deaths were extremely miserable.

"Let's go down and be cremated!" The major waved his hand weakly.

The first dead were buried on the spot, but with the surge in the number of deaths, they had to be cremated, after all, corpses cannot be thrown away anywhere, otherwise they will become nutrients for the evolution of mutants.

Even the battles that have come have made them gradually grow into elites, whether it is their own level or skill level, they are already quite high, coupled with skilled coordination tactics, it is almost not a problem to kill ordinary spider monsters in seconds.

But there are too many spider monsters, whether it is a wall of fire or a rain of arrows, each attack can clear a large area of spider monsters, but in less than a second, more spiders will come up.

This kind of numerical advantage is simply desperate, God knows when such a huge spider tide appeared in Jinling City, and depending on the situation, this number is still increasing.

After seeing the cruelty of this strangulation field, Haoren came to Wang Han's location and ordered: "The magic hot air balloon must be created as soon as possible!" ”

"I understand without you saying it!"

The news of the hot air balloon escape quickly spread throughout the fortress, but anyone who could not go up to the castle to defend came to help, and most of them could not help much even if they did not have a suitable subclass.

Jiang Junqing rushed over to be a helper after the battle, and his sub-profession is also a forger, and some of the metal appliances needed for hot air balloons need to be crafted.

"This is the blueprint of the Thermal Magician!" Wang Han opened the notebook, drew a crooked diagram on it, handed it to Haoren, wiped the beads of sweat on his forehead, and said: "This is the most critical part, I need part of the lava spar for experimentation, so as to ensure the final success." ”

Wang Han's drawings are really not good-looking, and Haoren couldn't recognize the reason for it for a long time, so he returned the notebook to him, nodded and said, "Yes, I will provide as many lava crystals as I want, but what's the matter with your experiment?" ”

In the course of the experiment, Wang Hanping withdrew from all the others, according to him, this thing may be dangerous during the experiment?

"You didn't say you wanted to experiment before, let alone that it was dangerous!" Haoren rubbed his head with a little headache, and the others looked at them with suspicious eyes before leaving.

As for the magic wizards of the second civilization, everyone treats them with curiosity but disbelief.

Wang Han laughed dryly: "Don't worry, it's just a routine experiment, it will be completed soon, and there won't be much danger." ”

"Then why are you letting everyone else avoid it!" Haoren muttered a few words, the so-called danger is actually a slight explosion that may occur, Haoren's flame resistance is very high, and he has a certain immunity to flame damage, so he chose to stay and watch the entire experimental process.

In front of him was a pitch-black rectangular metal iron box, which was forged from the few remaining reserves of black iron metal, and in the metal iron box was placed a high-grade lava crystal, and at the end of the iron box was an iron pipe the thickness of an arm, which was also made of black iron.

I saw Wang Han press the button a few times on the outside of the iron box, and the fire energy inside the lava spar began to fluctuate violently, and circles of light red ripples visible to the naked eye rippled near the spar, and the entire metal box shook slightly, and it continued to intensify.

"Are you really sure it was just a slight explosion?" Hao Ren frowned, since fusing the heart of fire, his perception of the fire elemental energy in the air seemed to be more acute, and he clearly felt that the fire energy around him had become extremely active.

"Don't worry, I'm an intermediate magister, and I'm very familiar with this thing, in fact, the principle of this magic guide device is very simple, through the magic guide theory, the fire energy in the lava spar is extracted as the power of the hot air balloon." Wang Han looked full of confidence, and suddenly shouted: "Look, the lava spar has reacted!" ”

The surface of the lava crystal shimmered with a dazzling light, like the sun, and the fire elemental activity around it was at its peak.

"Run!" Haoren quickly activated the wings of the god of fire, pulled up Wang Han and flew into the air. A few seconds later, with a dull explosion, thick black smoke rose from the ground.

"Mistake! Blunder! Wang Han wiped the black smoke on his face, and quickly explained: "Because the proportional amplitude of the conversion needs to be constantly adjusted, failure is inevitable, give me time, I will definitely succeed!" ”

Haoren sighed: "Whatever, anyway, it's done as soon as possible, forget it, I'll continue to stay here, otherwise I'm really worried that you guy will be blown up by himself." ”

His worries were not unreasonable, according to what Wang Han said, adjusting the conversion amplitude of the magic guide, for more than an hour, similar explosions sounded twenty or thirty times, and the most powerful one even left a large pit on the ground.

In any case, after wasting an entire piece of high-grade lava crystal, Wang Han finally determined the final conversion amplitude ratio. After activating the magic guide again, there was no explosion, and Haoren felt that although the fire energy in the air was active, it was very gentle.

The fire energy was extracted from the inside of the lava spar and released through the metal conduit, and a thick hot wind rushed towards him, and Haoren, who was dozens of meters away, could feel the powerful impact of this hot wind.

Wang Han was very happy and raised his hands and smiled: "It's a success!" The magic test was successful! ”

(To be continued)