Qin Chen naturally didn't know that Liu Ze and the Dove Demon Heart of the Gufeng Chamber of Commerce had also entered the Black Death Swamp and tracked him down.

At this time, he was leading the black slaves, and he was quickly flying towards the ruins.

After another half a day, Qin Chen felt that the miasma around him was getting thicker and thicker, and at the same time, some ordinary elixirs began to appear in the swamp.

These elixirs grow in the Black Death Swamp, and they all carry a kind of cold power, as if they have been infected, and there are still some differences from the normal growth of elixirs.

However, after Qin Chen investigated, he found that these cold powers were nothing, the medicinal properties of the elixir itself were exactly the same as those grown in other places in the outside world, and in the process of refining the elixir, as long as the alchemist was willing, he could first use the fire to refine these cold powers, and then the cold power in it would naturally disappear.

After finding some elixir, Qin Chen fell down on a slightly drier mound.

One day, he felt that his body had been invaded by some miasma, and if it was not eliminated in time, it would slowly accumulate in his body and destroy his body.

Therefore, he had to prepare a special detoxification pill as soon as possible.

It's just that just after Qin Chen fell, roaring, from the middle of that hill, a fifth-order mud dragon rushed out directly.

It is said to be a mud dragon, but it is actually a terrifying blood beast that looks like an earthworm, but it is incomparably huge, several zhang long, and one end of it just rushed out of the ground, and it immediately cracked, forming a huge round tooth mouth, and it swallowed towards Qin Chen in one bite.

At the same time, an extremely terrifying suction force was about to pull Qin Chen into the mouth of the mud dragon.

Looking at the dense sharp teeth, Qin Chen felt a chill all over his body, he reacted extremely quickly, and at the moment when the mud dragon was unearthed, he slashed out with a sword.

Poof!

Who knew that the defensive power of this mud dragon was extremely terrifying, and Qin Chen's sword with all his strength only left a thin mark several feet long on its body, and even its thick skin was not broken.

At this moment, Qin Chen was already desperate to break through to the fifth order, if he was now a fifth-order cultivator, how could he not even be able to break through the defense of a fifth-order mud dragon?

Seeing that Qin Chen still dared to resist, the mud dragon was immediately furious, boom, and the remaining half of his body was pulled out of the mire, bringing up a puff of black sludge, and his heavy torso was pumped towards Qin Chen.

"Look for death!"

At this time, the black slave had already reacted, and with an angry shout, the Heavenly Demon Banner instantly rolled out.

Call!

Black demonic energy suddenly enveloped the huge body of the mud dragon.

"Bang bang bang!"

The black slave originally thought that the Heavenly Demon Banner was very easy to deal with the Yin Soul Beast, and it should be easy to deal with this mud dragon, but he didn't expect that this mud dragon's resistance to the black demonic qi of the Heavenly Demon Banner was extremely strong, and under the sweep of the Heavenly Demon Flag, it writhed wildly, and even rushed out of the black demonic qi package.

Qin Chen frowned, and he suddenly remembered that although the mud dragon was also a type of blood beast, in fact, its wisdom was extremely low, and it only had an instinctive desire to devour.

The Heavenly Demon Banner, on the other hand, is actually an evil thing that can target the soul.

But this mud dragon has no thinking, and in addition to the fact that it lives with black mud in this black death swamp all year round, and devours a large number of miasma things, its resistance to this yin and evil thing is naturally extremely strong.

So much so that the Heavenly Demon Banner couldn't take the other party for a while.

The mud dragon was trapped by the Heavenly Demon Flag, and it also became angry, opening its huge mouth and roaring angrily, while squirting a large amount of sludge and slime towards Qin Chen.

Seeing these disgusting things, Qin Chen hurriedly retreated, only to see that after these sludge slime fell on the Black Death Swamp, he suddenly made a sneering corrosion sound, and the black fishy smell came, and the black mud on the Black Death Swamp was corroded into big holes.

Fighting with this disgusting thing, Qin Chen was not interested at all, he directly took out the black gourd, opened the gourd stopper, and only heard a buzzing sound, and dense air devouring ants and fire refining insects flew out in an instant.

Originally, Qin Chen was worried that the Air Devouring Ants and Fire Refining Insects would not be used to the environment of the Black Death Swamp, but he didn't expect that after coming out, the Air Devouring Ants and Fire Refining Insects became obviously excited, and then turned into a black cloud, and the mud dragon was wrapped in a group at once.

The mud dragon, which was originally able to hold on under the black demonic qi, was attacked by the gas devouring ants and fire refining insects, and suddenly let out a painful cry, and its body rolled violently, while frantically spewing out highly poisonous mucus.

But the Air Eaters and Fire Refining Insects were obviously not afraid at all, and even the slime that could corrode the Black Death Swamp fell on these insects, but it was not able to corrode them at all.

After a moment of effort, the mud dragon that was still showing off its might before was completely paralyzed, and finally completely silent.

The power of the blood beast on its body has been completely absorbed by the air devouring ants and fire refining insects, and there is nothing left.

"Black slave, find me the blood crystal of this mud dragon. ”

After Qin Chen recalled the Air Devouring Ant and the Fire Refining Worm, he said to the black slave.

"Huh?"

Looking at the extremely ugly mud dragon in front of him, the black slave's face suddenly turned blue, he would rather Qin Chen let him fight with a martial artist than dissect this mud dragon and find out its blood crystal.

But Qin Chen's orders, he naturally couldn't help but listen, so he could only cry and dig out the blood crystal.

Then he was extremely depressed and washed with a large amount of water before handing it to Qin Chen.

This mud dragon is incomparably large, but the blood crystal is smaller than a normal person's fist, like a black crystal, and there is a faint black aura lingering in it.

"Don't underestimate this mud dragon's blood crystal, in this black death swamp, it can save your life. ”

After Qin Chen said to the black slave, he directly took out a lot of elixirs from his body and began to refine them.

"What is this for?" the black slave looked puzzled.

I saw that Qin Chen took out all the elixirs obtained from this black death swamp, and some of them were obtained from the Anbei Twin Demon Storage Ring, and quickly threw them into the Dan furnace.

After a stick of incense, a faint breath came out of the Dan furnace.

Only then did Qin Chen put the blood crystal of the mud dragon into the Dan furnace.

Then he began to refine it with the Qinglian Demon Fire.

After the black slave obtained the Qinglian Demon Fire, he was quite accomplished in refining medicine and bloodline, but after seeing Qin Chen's refining, he couldn't understand how he refined it at all.

It was only a moment of effort, Qin Chen stopped refining, and at the same time, there were twelve more black pills in the Dan furnace.

"These are six detoxification pills, you take them and take one first. Qin Chen said after taking out six pills and giving them to the black slave.

"Dustless, I've already taken the Detoxification Pill. The black slave wondered.

"If you take it, you can use it, what so much nonsense. Qin Chen glared at him.

The black slave could only obediently swallow an elixir.

It's just that as soon as this detoxification pill entered his abdomen, a sharp pain instantly passed out of his stomach.

"Dustless, you're not trying to poison me, are you?"=

The black slave screamed in pain, his face turned green, and his body was spasming.

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