"Now, the main thing is to get rid of the Death Castle first, these guys who have died once are too much of a headache, if you don't get rid of them, it's like a chopping throat." Xu Feng glanced up at the guardian beast's lair.

At this time, the dragon had already burrowed into the cave of the lair and was nowhere to be seen.

Xu Feng took a short rest and entered the passage under the sweet water lake.

The passage under the Sweetwater Lake is free to be filled with water or not. Now there is no water in the passage, and there are stone walls all around, covered with green moss.

If someone attacks here, Xu Feng can control and fill this place with water, increasing the difficulty of attacking, which can also be regarded as a means of defense.

In the previous life, it was precisely because of the battle between Jiaolong and the Death Castle that they were picked up by the people of the Doomsday Ark Alliance, who not only killed Jiaolong and obtained a black dragon bloodline, but also obtained the ownership of the sacrificial village.

In this life, both the sacrificial village and the dragon have been mastered by Xu Feng, so naturally he can't let the death castle continue to survive.

Now that you have encountered the undead creatures, you must have appeared in the Death Castle, so you just need to be patient and look for it.

Xu Feng entered the Blackwater Swamp and ran towards the place where the undead creature had been found.

Most of the monsters in the Blackwater Swamp are three-star, and the strength of the people who can come here to hunt is not ordinary, but only here can obtain a large number of three-star beast crystals, so there are also many people who team up here to upgrade.

Xu Feng searched for traces of undead creatures in the black water swamp, and at this moment, he suddenly heard a thunderclap-like roar from the sky.

Thundered~

Click~

A silver bolt of lightning streaked across the sky, like a thunderbolt from a sunny day!

Xu Feng looked up, the originally clear sky, hanging a silver lightning from east to west, this lightning, like a big tree lying in the sky, the main trunk extended outward countless branches, and the branches split out countless small side branches, almost covering the entire sky.

After the lightning appeared, it didn't disappear, as if it had been pressed the pause button, and it hung in the sky.

"Another alien race......" Xu Feng sighed.

Entering the great universe is both an opportunity and a disaster for the earth.

If you can survive it, the future is bright, if you can't survive, it will be the destruction of the world and the destruction of the planet.

"It's ...... who came this time" Xu Feng frowned slightly, remembering what race came this time.

Looking at the silver "lightning" in the sky, Xu Feng suddenly thought.

"Beast Demon Clan!" Xu Feng's face changed greatly.

The Beast Demon Race is not the most powerful alien race that invades, but it does have the most serious impact on the humans of the earth, even more powerful than the Void Zerg that killed hundreds of millions of earthlings as soon as it came.

The most powerful thing about the beast demon clan is that they can take the initiative to awaken the sanity of any beast.

After their arrival, there were a large number of sane beasts on the earth.

Some of these beasts regard themselves as beasts and demons, and the other part still regards the earth as their home planet, thinking that they are a part of the earth, and they stand up as demons, and it is precisely because of the demons that the will of the earth has recognized their status and enjoys the same power as humans.

"Demon Clan, Demon Clan......" Xu Feng's eyes became confused.

In his previous life, there were ten demon gods, Xu Feng once made a mistake, and a three-tailed cat demon with the pseudonym Du Xiaolin met, the two fought for a treasure in a secret realm, but because of another powerful monster, they were finally forced to join forces against the enemy and formed a friendship, and finally, the three-tailed cat demon Du Xiaolin was killed by a more powerful scorpion demon because of saving Xu Feng, Xu Feng still remembers that Du Xiaolin, who was hanging on the tail of the scorpion demon, looked at him with blood in his eyes.

"In this life, I will never let you die a tragic death like that again......" Xu Feng gritted his teeth and swore secretly in his heart.

The "lightning" in the sky that seemed to be frozen lasted for a long time before gradually disappearing, it seemed to be just a strange weather anomaly, and nothing happened, but Xu Feng knew that a large number of beast demons had entered the earth, and it would not be long before countless beasts with sanity, like humans, began to hunt alien invaders, obtain insect crystals, beast crystals, improve their strength, and compete with humans for the qualifications of the earth's electors.

"Demon Clan, if we can join forces with humans, those alien invaders will probably be driven out of the earth long ago." Xu Feng smiled bitterly in his heart.

The beasts with sanity call themselves demon clans, and they are powerful and a force to be reckoned with, but unfortunately most of them are fighting with humans and have not formed a joint force.

"It's useless to think about it so much now, let's find the Death Castle first and see if there's a chance to reduce its strength." Xu Feng thought in his heart.

How strong Jiaolong's strength is, Xu Feng naturally knows that he can fight with Jiaolong, and the strength of the Death Castle is definitely not comparable to the current Xu Feng.

Xu Feng galloped through the blackwater swamp, and from time to time he could see several human figures, hunting monsters in teams; Even in the process of running, some swamp lizard beasts were alarmed, and these big guys roared and chased after Xu Feng.

Xu Feng lazily stopped to hunt them, just ran wildly all the way, and the agility of the three stars allowed him to leave those monsters chasing him far behind.

In the evening, a huge black shadow slowly wandered at the end of the horizon.

"Undead creatures?" Xu Feng's eyes widened, it was a skeletal mammoth;

This is a mammoth with only bones left, their souls attached to the bones, transformed into undead creatures by mysterious undead energy, and with the Death Castle, descended to Earth and entered the Blackwater Swamp.

Xu Feng slowly touched the skeletal mammoth, and he was far away, and lost an insight technique.

"Bone Mammoth (Undead), 3 Star Elite, HP, 4350/4350"

This is a three-star elite strength mammoth, huge in size, although slow, but very powerful, even if it is a tank, it can be directly knocked over.

If Xu Feng's three-star elite monitor lizard beast hadn't died, it would still be able to go up and fight, but now only Xu Feng is alone, I'm afraid it's not the opponent of this big guy.

"Since there are undead creatures, then the Death Castle must be nearby, first find some weaker guys to practice their hands, and by the way, find out the specific location of the Death Castle." Xu Feng glanced at the skeletal mammoth not far away, turned his head and swept in the direction the mammoth came from.

Xu Feng's movements did not attract the attention of the skeletal mammoth, which was still wandering slowly in the Blackwater Swamp.

After a kilometer of further walking, a number of patrolling skeletons appeared in front of them;