Chapter 920 Frost Arrow Tower

"Let me go, what is this operation?"

As the first wave of ordinary wild monsters were all killed, the players who were still watching from a distance thought that the second wave would soon usher in.

But no one expected that such a strange scene would appear in front of them.

Whenever the black crocodile is about to be killed, a green light will fall on its head.

The seven-digit amount of treatment made the battle that should have ended in four or five minutes last for more than an hour.

"Hey, those guys in Jing'an, this operation is really magical!"

"What do you mean, why don't I understand?"

"What's not to understand about such an obvious thing? Combined with the previous operation of recruiting architects, their intentions are already obvious!"

"Here, are you trying to delay time so that you can build more arrow towers?"

······

The crowd was talking a lot, but the brave man who singled out the black crocodile had a look of confusion on his face.

Buzz! Buzz! Buzz!

Fortunately, time passed very quickly. More than an hour passed by in a flash, and some red flying mosquitoes gradually appeared in the distance, slowly flying towards Demon Cloud City.

Seeing that the second wave of monsters was about to attack the city, but another green light flew behind him, Wuyong quickly shouted: "I say ancestor, you have enough!"

"It's been almost two hours, just let me kill it!"

"No." Xie Yao held up her magic wand and refused without hesitation: "City Lord Jiang told me when he left that this crocodile cannot die, so I must continue to add blood to it."

"What the hell, you damn bitch, why don't you know how to adapt at all!"

Wu Yong cursed with resentment, but he had no choice but to wave his red ax and kill again.

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Magic Cloud City.

More than 300 construction engineers, after nearly two hours of work, had nearly 10,000 arrow towers appearing on the city wall.

In about two or three hours, they will be able to get their reward, and then they can stay in the city with peace of mind and watch the battle to defend the city up close.

It's just that the number of magic towers is slightly unsatisfactory.

Although more than two hours have passed, less than fifty have been built, and half of them are only first-level flame towers.

At this time, next to a tall magic tower in the northwest corner of Demon Cloud City, a figure wearing red armor was holding a dark blue crystal stone and carving it carefully and meticulously.

A few minutes later, he breathed a sigh of relief and carefully installed the crystal in his hand on the magic tower next to him.

Almost at the same time, the magic tower, which was nearly three meters high, instantly rose to five meters.

Buzz! Buzz! Buzz!

As the second wave of monsters outside the city began to attack the city, bloody mosquitoes all over the sky flew straight towards Demon Cloud City.

But before it could get close to the attack range of the arrow tower, nearly a hundred blue ice arrows were quickly condensed on the newly built fifth-level magic tower.

Immediately afterwards, the sound of "swish" quickly rang in his ears, and he shot straight into the sky full of blood mosquitoes.

"Damn it, the attack range of five thousand meters is too fierce!"

Seeing that the fifth-level Frost Arrow Tower was already raining down arrows, Jiang Zhe immediately flew up into the air and said with shock on his face: "This magic tower is only at the fifth level!"

"If it is upgraded to level seven, wouldn't the attack range reach seven thousand meters?"

"Hey, this is not necessarily true." Xiao Han narrowed his eyes slightly and continued with a smile on his face: "Magic towers from level one to level three can be collectively referred to as primary magic towers."

"And magic towers at levels four to six can also be said to be intermediate magic towers."

"Actually, this is somewhat similar to the division of strength among evolvers. Level four and level seven are considered a watershed."

"Both the power and the attack range will be upgraded to a whole new level."

"So, wouldn't it be able to exert its seventh-level combat effectiveness?" Jiang Zhe's eyes flashed fiercely, and he said with a depressed face: "It's a pity, time is really tight."

"If we can build twenty or thirty seven-level magic towers, the tide of beasts coming across the mountains will be nothing!"

"Yes, time is too tight." Xiao Han said with emotion, and immediately added: "But it's not bad now, at least five can be built."

"With them, the chance of guarding Jing'an will increase by at least 50%."

"It's just that the magic tower's attack is too scattered. It's unlikely that it will cause fatal damage to the seventh-level mutant beast."

"It's a pity that I don't know how to build a level 3 arrow tower. Otherwise, if I build a level 7 arrow tower, it might be possible to kill a level 7 mutant beast with one arrow."

"Hey!" Jiang Zhe sighed dejectedly, and continued with a sore face: "Yeah, it's such a pity."

"The beast tide suddenly accelerated, which is beyond our control."

"If there were another three to five days as a buffer, perhaps our preparations would be more complete, but as it is now, it is already very good."

"Even without the support of Kyoto, we in Jing'an are still capable of fighting."

"Yes, so you must control your time." Xiao Han nodded and continued: "Only with more time can I build more advanced magic towers."

"Since the mutated beasts coming from the Hengduan Mountains have gathered the beast tide that collapsed from Tiancheng, their scale will definitely be larger."

"More than 20,000 arrow towers alone are not enough to stop their attack."

"Only when there are more than 100 level 5 magic towers can we kill more mutant beasts below level 4 in groups, and even prevent them from getting close to the city."

"I know, there will be no mistakes this time." Jiang Zhe nodded solemnly, and continued in a deep voice: "To prevent accidents, I will watch it myself now."

"Humph, since Manyong likes to kill bosses, let him kill enough at once today."

Swoosh! Whoosh! Whoosh!

Seeing that the Frost Arrow Tower was still shooting arrows and killing the level 70 blood mosquitoes in seconds, he did not delay any longer and flew towards the city wall immediately.

At this time, the blood mosquitoes in the sky finally approached the city within a kilometer.

The 24 level 3 flame towers placed in the city also began to shoot fireballs with a diameter of more than half a meter.

Boom!

At the moment of its explosion, the blood-red damage value immediately appeared.

Whoosh! Whoosh! Whoosh!

As the blood mosquitoes continued to approach, the four second-level arrow towers next to the third-level flame tower also began to rain arrows out of the city at a rate of two per second.

Compared with the first wave, the second wave of blood mosquitoes was stronger.

But before they could get close to the city wall, they had already fallen from the sky and turned into corpses.

At this time, the defense of Demon Cloud City was completely different from that two hours ago.

Nearly 10,000 arrow towers were built, even if they were all first-level arrow towers with less than 10,000 attack points, but they could not withstand the large number!

In less than half an hour, almost all the blood mosquitoes in the sky had been killed.

At this time, there was also a blood-red overlord-level blood mosquito with a diameter of more than one meter in the distance, flying quickly towards Demon Cloud City...