The Black Rock Mountains, as the name suggests, are rocks here that are hard and take on a graphite-like blackness. On top of this rock, there is no grass, so the whole mountain looks bare.

In this environment, Lin Fei found the Demon Dragon's lair with little effort.

It was a huge cliff with a cave like a large mouth, and a fishy stench could be smelled from a long distance.

Faintly, a low beast roar could be heard coming from the cliff cave.

Lin Fei placed the Super Water Elemental, Liukou and Polar Bear Warriors in a treacherous terrain below, and arranged the formation, so that as long as the demon dragon was lured out, he could directly attack with the help of the favorable terrain.

As for rushing into the demon dragon's lair to slay the dragon, Lin Fei didn't think about this stupid idea at all, no matter what, the cave is the territory of the demon dragon, and dealing with the enemy in the enemy's territory is the next step.

With the help of his wings and flew towards the cave, Lin Fei held his breath and was cautious. When I got closer, I found that the cave on the cliff was huge, with a height and width of more than thirty meters, like the bloody mouth of a wild beast, and it was pitch black inside, and I couldn't see anything clearly, but I felt a stream of fishy wind blowing out of it.

The wings were instigated, and Lin Fei entered the cave.

Although it was extremely dark here, Lin Fei could still see some things clearly, but when he saw the environment in the cave close to the entrance of the cave, Lin Fei scolded secretly.

This demon dragon is really too lazy, and the entrance of the cave is full of the remains and bones of various beasts, which are covered with a thick layer, and they are obviously eaten and discarded here. After many years, I don't know how much he has accumulated, Lin Fei poked his head out and looked at the bottom of the cliff, there was a pile of bones more than ten meters high. But he retracted his head.

Look at the number of bones. Knowing the ferocity of this demon dragon, Lin Fei felt a twelve-point spirit in his heart and used stealth. Walk slowly towards the cave.

The cave was very large, and after walking forward for a while, Lin Fei saw a huge cave in front of him. There was a dark shadow lying on his stomach.

"Is that the Dragon?"

Lin Fei frowned and said secretly. The black shadow was extremely large, and it was one of the largest ones he had ever seen in the dragon species. Moreover, most of the monsters in this ancient battlefield were fierce and abnormal, so Lin Fei was not careless at all, and continued to get closer to check the opponent's combat power.

It's just obvious that Lin Fei still underestimated the power of this demon dragon.

After getting close to a certain distance, Lin Fei was just about to check the opponent's combat strength, but he saw the originally closed Demon Dragon Eye. At this time, he suddenly opened his eyes.

The basin-like eyeballs exuded a terrifying murderous aura at the moment, staring at Lin Fei, which made Lin Fei, who had experienced countless lives and deaths, feel a little palpitation.

See the dragon wake up. Lin Fei hurriedly checked the combat power. It turned out to be some scalp tingling.

32000！

This kind of combat power is really a bit unexpected. At this moment, the demon dragon had already suddenly stood up and let out a shocking roar.

"Run!"

Lin Fei knew that if he was one-on-one, he was afraid that even if he used his faith space, he would not be the opponent of the other party even if he used his top-level combat power at the same time.

So he can only run.

Now Lin Fei only hopes that his subordinates who are ambushed outside can work together to surround and kill this demon dragon, otherwise he is afraid that he will lose a lot this time.

Lin Fei flew out of the Demon Dragon Cave at a very fast speed, but the speed of the other party was also extremely fast, and as soon as Lin Fei came out, the huge figure of the Demon Dragon chased out.

Roar!

A dragon groan sounded through the sky, and the next moment, the demon dragon opened its mouth, and a blazing fire ball came straight to Lin Fei's heart.

The fire mass was extremely large, exuding blazing energy, but Lin Fei was relieved when he saw it, and hurriedly opened the realm of faith.

The most important thing in his realm of faith was flames, and in this realm, Lin Fei's immunity to flames reached 90%.

So even if he was directly hit by this flame, Lin Fei would not be injured.

"Do it, kill this dragon!"

Lin Fei roared angrily, although the combat power of this demon dragon is strong, after all, there are many people on his side, especially the three polar bear warriors with a combat power of nearly 15,000, they are even more fierce and abnormal. One-on-one, perhaps none of Lin Fei's side is the opponent of the Demon Dragon, but as long as they join forces, they can compete with monsters of the other party's level.

There is no doubt that this was an extremely tragic battle.

Lin Fei can't use his top-level combat power yet, so he can only rely on his ordinary skills to kill the enemy, and his troops are also doing their best to attack this rampaging demon dragon.

Only now did Lin Fei see clearly that this demon dragon was simply a huge lizard, with small wings, and the skin color of its whole body showed a brilliant color.

Suddenly, the dragon flapped its wings and let out a series of roars of varying tones.

The next moment, Lin Fei felt an extreme danger.

Overhead, a terrifying thunderbolt poured down in an instant, directly slashing at a polar bear warrior besieging the demon dragon. The lightning was as thick as a bucket of water, and took on a terrifying purple color.

With a click, Lin Fei only felt that his eyes were flowering, and his ears were full of echoes of thunder.

When I opened my eyes again, I saw that the polar bear warrior who had been struck by lightning had fallen to the ground, with no breath at all, and half of his body was charred.

"It's magic, and it's so powerful!"

Lin Fei thought about it now, the Demon Dragon Demon Dragon should be a kind of dragon clan that can release magic. It's just that Lin Fei, who knew this, didn't have any intention of retreating, but his offensive became more and more ferocious.

Bang!

A burst of flame suddenly exploded on a super water element, and the originally powerful super water element suddenly turned into a mist in the sky, and Lin Fei lost another unit.

"Damn, I have to skin you alive!" Lin Fei was furious, these troops were all recruited by himself with great difficulty, and there was one less dead. However, Lin Fei also knew that this was really because the demon dragon was too strong, but fortunately, he had the Heavenly God Stone Shield in his hand, which added extra defense to all the troops, otherwise it would not only be these two classes that would die now.

Although the besieged demon dragon was extremely fierce, it was not unscathed under the even more ferocious siege. It had many wounds on its body, it was already in a state of serious injury, and its attack was not as ferocious as it had been at the beginning.

It's just that even so, Lin Fei's last super water element still didn't escape the fate of being killed, not only that, but this demon dragon actually released a magic spell on Lin Fei.

The next moment, a bolt of lightning slashed directly at Lin Fei, but Lin Fei, who had been prepared for a long time, immediately used a crow stand-in to escape the catastrophe.

Releasing three terrifying magic in a row, this demon dragon is also exhausted of mana, and can only rely on hand-to-hand combat to resist, but the demon dragon that has lost its magic is simply a meat dragon.

Syllable!

The polar bear warrior slapped the demon dragon on the head, directly knocking the opponent to the ground, Lin Fei also saw the opportunity, stepped forward and stabbed the demon dragon into the neck with a sword.

Flutter!

A stream of fishy dragon blood splattered out from the wound on his neck, drenching Lin Fei's head and body.

"Congratulations on your successful slaying of the Demon Dragon!"

Looking at the prompt, Lin Fei's heart was only relieved, but there was no excitement at all. In this battle, his losses were simply too great, the two super water elements were all wiped out, one of the three polar bear warriors was also killed, and the other two were also seriously injured, but fortunately, the two rogues were very clever but there was no loss.

In order to kill the Demon Dragon, Lin Fei's overall strength was reduced by half, and this loss was too great.

Suppressing the anger in his heart, Lin Fei took out the crystal bottle, filled it with demon dragon blood, and immediately got a hint that it could be delivered to the witch Claire.

Glancing at the demon dragon's lair, Lin Fei flew up, secretly saying that his loss was so huge, he had to go to the other party's lair to escape some interest.

So Lin Fei, who returned to the Demon Dragon's lair again, started a big sweep, originally just with a tentative heart, but he really found two treasure chests.

These two chests are treasure chests, which means that what is opened inside is definitely a strategic item.

Lin Fei's mood improved again, and he got two strategic props, but he recovered a lot of losses. Next, Lin Fei rubbed his hands and opened the first treasure chest.

Boom!

Inside the treasure chest, a cloth bag full of gold appeared.

"A small gold bag that provides 50 units of gold per day!"

"Haha, good luck!" Lin Fei was quite excited, with this golden bag, his resource situation was more guaranteed.

The next moment, Lin Fei stretched out his hand and opened the second treasure chest.

This time, a puff of smoke came out of the chest, and then a stone sword came out.

"The Celestial Stone Sword, a strategic treasure, can provide a powerful attack power bonus for all the creatures under your command, one of the Celestial Armament Kits, collect the remaining Celestial Stone Sword, Celestial Stone Ring, and can be synthesized into 'Celestial Armament'."

Earned!

Seeing this Heavenly God Stone Sword, Lin Fei was in a good mood, how powerful the Heavenly God Stone Shield was before Lin Fei knew clearly, if it weren't for this Heavenly God Stone Shield, the Demon Dragon Battle might have lost more troops, so thinking about it, this Heavenly God Stone Sword should not be far behind.

The most important thing is that Lin Fei has already collected two of the props of the Synthetic Heavenly God Armament, and if he can get the last Heavenly God Stone Ring to the Synthetic Heavenly God Armament, he will definitely be able to greatly improve his strength.

With such a harvest, Lin Fei quickly returned to the witch's hut with the crystal bottle filled with the blood of the demon dragon, and then handed the crystal bottle to Claire.

The old witch was very excited when she saw the crystal bottle handed over by Lin Fei.

"It's successful, it's really successful, it's indeed the blood of the dragon, now, I can study new witchcraft. Young man, this is your reward, take it! ”

After speaking, he threw Lin Fei a scroll full of magical words.

'Rapid Attack' scroll, a one-time item that, after use, increases the speed of all classes under your command by 20% for 20 minutes.

Obviously, this magic scroll can play a decisive role in determining victory or defeat at critical moments, the only pity is that it can be used intelligently once.

After collecting his reward, Lin Fei said a word to the witch again, and left the witch's hut after making sure that there were no follow-up side quests.

Next, Lin Fei once again devoted himself to the journey of collecting resources.