Mu You raised his hand and looked at the storage ring in his hand, and took out a peach-shaped crystal from it.

The heart of the forest spirit, this almost overflowing forest spirit core, contains extremely rich black magic power, and it is definitely violent enough when it comes to rage.

But at the same time, it has quite stability, after all, no matter how much energy is stored in a fist-sized spar, just like a battery, it can release energy outward relatively smoothly, unlike the wild natural wonder of the Earth Fountain, the eruption energy is always intermittent, sometimes strong and sometimes weak, which will cause the device to explode.

In that case, this spirit core should be eligible, right?

[You take out the Heart of the Spirit, hand it to the old goblin, and ask if it is available.] 】

[The decadent old goblin didn't care about your words at first, and subconsciously took over the heart of the forest spirit. 】

[But after just a few seconds, the goblin quickly became surprised.] It has already felt the energy surging in the crystal nucleus! 】

["Impossible! How could such a powerful energy exist? The old goblin looked at the crystal nucleus in his hand blankly, the energy in it was as deep and wide as the sea, and it couldn't understand why such a huge amount of energy could be stably gathered in such a small crystal. 】

[Countless doubts poured into the ground, but more were ecstasy: "I found it, this is the source of energy I have pursued all my life!" As long as I have this crystal nucleus, my invention can be completed! ”】

[The goblin held the crystal nucleus and laughed, and the frenzy and ambition appeared on his face again, but before its laughter fell, the crystal nucleus automatically flew up and flew back into your hands. 】

[You retracted the heart of the forest spirit, and corrected the language problem in the old goblin's words: This crystal nucleus does not belong to him, but to you. 】

[The old goblin hurriedly rushed to you, and couldn't wait to ask, how can you sell the crystal nucleus to it?] He is willing to pay any price. ...... you choose]

[Instead of agreeing to the goblin's request to buy it, you asked it for the promised payment, the blueprint of the energy conversion device.] 】

[The old goblin hesitated for a few seconds, but still kept his promise and took out the drawings and handed them to you. But it also reminds you that drawings alone are not enough, and without its technology, it is difficult for others to restore its device from drawings......]

This old goblin seems to be quite shrewd, probably seeing that Mu You can't get rid of its help, and wants to put forward conditions.

Mu You didn't have any resistance to this, as long as this goblin could really bring him benefits, the conditions would be discussed.

[After some discussion with the old goblin, a preliminary agreement was reached. 】

[It can work for you for a period of time, and the alchemy products made during the work belong to you, but at the same time, you also need to help him obtain the materials he needs, assist him in completing his invention, and after the device is put into use, announce to the world that it is the founder of this invention!] 】

In short, the old goblin does not want this invention to bring it any material benefits, it pursues to prove to the people that its research is correct, and it wants to leave a name in history!

Mu You said that there is no problem at all, and his favorite is this kind of talent who only seeks fame and not profit.

[You agreed to the old goblin Eugene's request for cooperation.] 】

[However, Eugene tells you that the only conversion device has been destroyed, and to make a new device, you need to collect three things: golden gears, ancient power furnaces, and 100 robot coils.] 】

[Among them, the Golden Gear and the Ancient Power Furnace can only be found in the main gathering place of the Goblin Clan, 'Clockwork City', and even in the Goblin Headquarters, they are treasured items at the level of secret treasures, and they will not be easily revealed. As for the robot coil, it is much easier, and it can be obtained by disassembling the alchemy robot in large quantities. 】

Sure enough, such a powerful thing is not so easy to make, and the materials needed are all 'gold xx', 'ancient xx', and you can see that it must be worth a lot of money by looking at the name.

One of the easiest ways to obtain these things is to go directly to the Goblin Clan and cooperate.

However, this is impossible, if the goblins know that Eugene's invention is feasible, they will study it themselves behind closed doors, and will not easily share the benefits with outsiders. Besides, he is about to go to the goblin's lair next, and there is no basis for cooperation between the two sides.

In this way, he had to sneak into Clockwork City to 'retrieve' these two things himself, whether it was stealing or robbing, in short, he had to find a way to get his hands on them.

As for what coils are simple, there are a bunch of them in the Alchemy Robot Temple, and you can go to the temple to brush the robots later.

After negotiating the conditions with the old goblin, Mu You put down the teleportation array on the spot and left the anthill with the goblin and the shadow wolf.

At this time, Lin Xue and the others had also found the exit to the temple, Lin Xue temporarily left the cave, came back to pick up Mu You into the backpack, and then teleported to the exit of the anthill they found.

[You come to a cliff deep in the anthill, and immediately hear the clanging sound of digging from behind the rock wall. 】

[You look out through the cracks in the stone on the mountain wall, and the outside of this mountain wall is connected to the interior of the Dark Temple, and at this time, a large number of goblin sappers are driving all kinds of work robots, digging around in the temple, mining the amethyst stone, which is a specialty here. 】

[Along the road where the goblins are distributed, you will see minecart tracks stretching along the road inside the temple, and the collected ores will be put into the minecart and quickly transported back through the tracks......]

These goblins are really capable, and the rails have been made, although there are not trains on the tracks now, but minecarts, but with this thing, it is not far from the appearance of trains.

Moreover, the goblins directly made the delivery rails in the temple of the dark elves, which is really planning to hollow out the ancestral temple......

Looking at the text, Mu You secretly thought about how to deal with the goblins next.

It is definitely not possible to break in directly and start fighting, the alchemy weapons of those goblins at the gate of the temple, he has already seen the power, and the reason why they sneaked here around a long way is to avoid their edge.

Now it's time to find a way to wreak havoc as much as possible without alarming those combat robots.

Thinking of this, Mu You operated in the game.

[You ask old goblin Eugene what weaknesses these goblin robots have.] 】

[Eugene tells you very frankly that the biggest weakness of the alchemy robot is energy! ] 】

[When a single alchemy robot is used, it can be directly powered by magic crystals.] However, in the case of starting a large number of robots in a small area at the same time, the magic crystal will become a high-cost and low-efficiency energy supply method, and the more suitable energy supply method is to establish a fixed magic crystal energy array to remotely supply energy to all nearby robots at the same time. 】

[At present, the robots in the temple use this method of energy supply: the goblins have established a total of ten magic crystal arrays here, which are distributed throughout the temple, as long as these magic crystal arrays are quietly closed, all the alchemy robots can be paralyzed. 】

[Without the assistance of robots, the ontological combat effectiveness of the goblin sapper is almost zero.] As long as you do this, you can easily conquer the entire temple ......]

Remotely transmitting energy through the formation is simply equivalent to wireless charging!

However, contrary to the technology tree on Earth, remote energy transmission through magical means has become a more efficient way to supply energy.

Mu You doesn't understand the specific principle, in short, the next step is to find these 'charging base stations'.

[You ask Eugene about the location of these magic crystal arrays.] 】

[Eugene said that you can just follow it, and it will lead you to all the magic crystal arrays.] 】

[After saying that, Eugene is the first to get out of the mountain wall, jump into the temple, and turn around and urge you to hurry up and follow. It can only begin its research if it gets things done as soon as possible......]

Mu You looked speechless, do you want to be so skilled......

The old goblin seemed to have no interest in their own interests.

This is not the time to delay, Mu You asked the others to wait in place, and he himself manipulated the characters to keep up with Eugene. Now it's sneaking on the opponent's territory, and the fewer people the better.

You follow Eugene into the temple. Eugene turned around and handed you a red hedron. 】

[This is a clockwork stone, hold it, when other robots scan you, they will not find your human identity, but will treat you as your own kind.] 】

[Eugene swaggers to lead the way, you stay stealthy and follow behind.] The goblin sappers you meet along the way are busy doing their own thing, and they ignore Eugene's love ......]

In this way, under the leadership of a senior Erwuzai, Mu You had a feeling of pushing the copy according to the strategy of a fool, which was too easy.

The only thing that baffles him is that the game occasionally pops up some strange options for him.

[Do you see a extinguished brazier on the wall in the corner in front of you, is it lit?] 】

"No."

Mu You looked confused, what kind of brazier did he have to ask him to light if he did? He's struggling to get around now, and if he lights a fire to attract the goblins, isn't that asking for trouble?

[You see a extinguished brazier in front of you, do you ......]

"No!"

[You see ......]

"No!"

……

In the process of following the old goblin on the road, the brazier encountered seven or eight in a row, and he had to be reminded every time, once or twice was fine, so many times in a row, which also made Mu You gradually feel that something was wrong: Could it be that there are any secrets hidden in these braziers?

Thinking of this, Mu You continued to look at the text silently. When the next brazier prompt pops up in the game, and there are no other goblins around, he chooses 'Yes' this time.

[You quietly stepped forward, condensed a flame in your hand, and lit the brazier on the wall. 】

[The brazier burns violently, emitting a dazzling firelight, illuminating the two roads in front of you around the corner. 】

That's ...... Finished?

Mu You frowned and waited, but he didn't wait for the next step at all. Lighting the brazier, there are no strange things or hints other than illuminating the route, as if it were an ordinary lighting fixture.

Mu You shook his head in disappointment, so he had to continue to follow the old goblin as if it hadn't happened.

The old goblins along the road had quietly destroyed the three magic crystal arrays, all of which were done by the other party themselves, and they were done very quickly, Mu You had no chance to make a move at all, and he didn't even alarm the other goblins afterwards.

This made Mu You feel that it was superfluous for him to follow.

Just when Mu You thought that he would complete the task so smoothly in the future, a new prompt suddenly popped up in the game.

[When you pass by a stone wall in the depths of the temple, you suddenly feel a strange fluctuation on the stone wall next to you, and you can't help but stop. 】

[Eugene looks back at you strangely and casts an inquiring glance at you.] ...... you choose]

[You tell Eugene to let him continue, you have something else to deal with.] 】

[Eugene didn't think much about it, at this time it had already realized that it didn't have any effect to let you follow, and it could move faster on its own, so it told you to turn around and meet at the exit of the anthill, and then leave alone, going to the direction of the next magic crystal array. 】

[After Eugene walked away, you confirmed that there was no one around, and took out the jack-o'-lantern ......]

[Jack-o-lantern effect, trigger!] 】

[Under the light of Qinghui, you can see that behind the stone wall, like a mold, revealing some traces of strange light points, which makes you realize that there seems to be an extra space hidden behind this wall. ...... you choose]

There is a special hint in this place, Mu You tried to use the jack-o-lantern, and sure enough, the jack-o'-lantern triggered the special effect as soon as it appeared.

The jack-o'-lantern triggers are usually positive events, and Mu You hurriedly chose 'Search'.

[You searched the neighborhood, but you didn't find any entrances.] 】

[In the center of the wall, you see seventeen invisible stone sculptures of flames, showing a faint outline under the jack-o-lantern, but only one of them is lit, and the others are dim. 】

"Flames? Seventeen, only one ignites ......"

The new text prompt made Mu You's heart move, and he immediately remembered those braziers he encountered on the road ahead.

He lit only one brazier, and there was a flame lit here.

So, did he light all the braziers and some kind of change would happen here?

Mu You wasn't sure, but he was interested in trying a secret room hidden in the temple, even if it was a bit risky......

made a decision, Mu You didn't waste any time, and immediately controlled the characters to return, found a few braziers that he encountered along the road just now, and lit them in turn.

And this time, I don't know if he has discovered the relationship between the stone walls, and a more detailed explanation actually appeared when he lit the brazier.

[You lit the 'Pilgrimage Brazier No. 12']

[Pilgrimage Brazier: A special structure used by the ancient elves to greet and worship the gods, which will automatically extinguish after one hour of ignition, and cannot be lit again for the next week.] 】

Ask God to use the brazier, and it can only be lit once a week, and it burns for only one hour at a time, that is, he must find all seventeen braziers within an hour.

Otherwise, if the time is exceeded, the brazier in front of you will be extinguished, and you will not be able to make up the brazier for the next week.

Mu You hurriedly accelerated his actions, at this time he only hoped that these goblins did not usually have the habit of lighting braziers, otherwise if one of them had been lit recently, even if he found all the others, he would fall short.

Next, Mu You launched the fastest speed, searched back and forth in the temple, and finally found the seventeen braziers within an hour.

Luckily, none of the seventeen braziers had been touched before, and all of them were lit up at this time.

Unfortunately, the sudden light of a large number of braziers still aroused the alarm of the goblins, and at this moment the temple was already faintly chaotic, and a large number of goblins were noisily patrolling back and forth in the corridors of the temple, as if searching for intruders.

However, Mu You couldn't care so much at this time, he had been looking for a brazier flower for more than fifty minutes just now, and soon the first brazier would be extinguished, so he had to hurry back to the stone wall to take a look.

You're back under the stone wall. 】

[Through the reflection of the jack-o'-lantern, you see that the seventeen flames on the wall have all been lit up at this moment.] 】

[At the same time, the wall itself has also changed slightly, becoming more transparent and unreal, and you try to reach forward, only to find that your palm passes through the wall without hindrance. 】

Sure enough, after all the braziers were lit, the wall seemed to be 'open' directly, turning into a wall of no shape, which could be stepped in without hindrance.

You are about to step into the stone wall, but at this moment, you suddenly hear a shouting sound from the outside world. 】

[The voice came from far away, and seemed to be in the direction of the Undercity.] The shouts soon became one and clearer, and it seemed that a large number of people were rapidly approaching the place. 】

"Mu You, what did you do?"

At this time, Lin Xue's voice came from the headset.

"How?" Mu You asked.

"I just received a reminder from here, and the dark elves in the Undercity seem to have rioted suddenly......"

(End of chapter)