The flying mutants were the first to rush into Crystal City.
From a distance, these flying mutant creatures were all birds of prey with wingspans exceeding two meters, and some even reached four or five meters.
Fortunately, Xu Xin did not see any pterosaur-like creatures among these flying mutant creatures.
It seems that there should be no advanced mutant creatures in this group of beasts.
At least not yet.
This is good news.
Because they are fully capable of stopping a herd of beasts of this level!
"Everyone, pay attention to the sky. Flying mutant creatures have entered Crystal City and will be approaching soon!" Xu Xin said in the group.
The situation on the ground is not optimistic either.
The beast tide that originally surrounded the Crystal City on the ground had now completely poured into the Crystal City.
In the map in his mind, the part of Crystal City has been completely covered by red dots!
Under the siege of such a large group, the more than 200 survivors in Crystal City were already struggling to deal with the ground creatures, and they also had to face the fierce beasts that jumped up from time to time and tried to destroy the heavy crossbows.
It would be really difficult for them to distract themselves from attacking the flying creatures in the sky.
"this……!"
"I may be able to take care of the sky!"
"I'll allocate a heavy crossbow to attack the sky!"
Sure enough, they were also a little confused after seeing Xu Xin's words.
Xu Xin immediately said, "Prioritize attacking the ground beasts and clearing out the ground beast population! I'm telling you to be careful of the mutant creatures in the sky. Don't let them cause damage to yourselves, the tree house, or the heavy crossbow!"
"Understood!"
"I still have half my ammo left! Enough to hold out for a while longer!"
"You're using it too fast! I still have more than half!"
"Save ammunition! Aim for densely populated areas and attack, so every shot has the greatest effect!"
"I'm responsible for this street on the east side! Our bombing ranges must not overlap!"
"Then I can allocate one to attack the big bird in the sky!"
Without the explorers saying anything, these survivors spontaneously began to launch the most effective attacks and plans against the beasts!
After all, they are survivors who have lived to this day, and they are the best in Area 1 and Area 188. This group of people have long been old hands in the survival world.
There is no need for them to give orders on what to do.
The speed of flying mutant creatures is much faster than that of ground mutant creatures, and far exceeds the speed of underground mutant creatures.
In just a dozen seconds, it had crossed half of the Crystal City and completely approached the World Tree.
However, when they flew into the Crystal City, a small part of them fell directly down.
They are the larger ones among this group of mutant creatures!
"They've been affected by the Crystal City!" Xu Xin immediately realized the underlying reason and reminded them in the Explorer, "These flying mutant creatures aren't completely devoid of Behemoth blood!"
It seems that the other party did not find enough flying mutant creatures without the blood of giant beasts, so they mixed a group of flying creatures with relatively thin blood of giant beasts into the group.
Perhaps they also wanted to try whether they would not be affected by the Crystal City at high altitudes, but unfortunately, according to Ah Fu's test, as long as they could see, they would be affected. The vision range of birds of prey was far beyond that of mammals such as humans. Basically, once they entered the range of the Crystal City, they fell in large numbers.
Within seconds of entering the Crystal City, two out of ten of the entire flying corps were killed.
But the remaining swarms of flying mutant creatures were not affected at all. They came at a high speed, directly passed the heavy crossbow defense line of the two hundred survivors, and swooped down towards the World Tree!
Their target is the trunk of the World Tree, not the crown.
The tree canopy is too lush and too vast, almost covering half of the Crystal City. It would be a huge project to completely destroy the tree canopy, not to mention that the tree canopy can repair itself, and the speed of destruction may not be as fast as the speed of repair.
The other party knew very well that only by destroying the trunk could the World Tree be destroyed, and attacking the crown was useless.
As a result, all the flying mutant creatures were not attracted by the treetops at all, but flew directly under the crown of the World Tree and dived towards the trunk.
The speed is too fast!
At this moment, three birds of prey suddenly flew out from the window of Wen Guixin's tree house and flew rapidly towards the flying herd of beasts!
It was like three fighter planes took off from the ground and climbed towards the group of enemy fighter planes diving in the air!
Moreover, their goal is very simple, which is to crash into it!
If you can hurt the other party, you will win!
The flying mutants did not surround the World Tree like the ground mutants did. They flew in a group from the north of Crystal City. Their overall formation was like geese flying south, forming a standard V-shaped pattern.
This formation is designed to reduce overall flight resistance.
Usually the one leading the group is the strongest and also the most tired.
The three fierce birds that flew out of Wen Guixin's tree house window were aiming at the tip of the V-formation!
In an instant, three fierce birds crashed into the enemy's flying formation, and the overall formation of the flying mutant creatures was directly disrupted. Sharp bird calls rang out, and feathers flew everywhere!
Wen Guixin spoke up among the explorers: "What are you all standing there for? Blast them!"
As she spoke, the tree house crossbow on her tree house began to work, and in an instant, dozens of explosive crossbow bullets were scattered into the air!
At the same time, explosive crossbows also scattered from several other tree houses!
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