On the wall next to the bookshelf, there is a small red button. When Zhang Luo pressed the button, he heard a dull rumbling sound coming from the tunnel outside the house, and the ground under his feet began to tremble slightly.

There is no doubt that this is the signal that the protective door outside is open.

"Shall we go?" He winked at the two teammates beside him, then at the gaping hole in the wall.

Although it is possible to get out from the side of the crumbling wall, it is too dangerous, and if you can't see the situation inside, God knows if there is an abyss under your feet.

Even Zhang Luo would not make such a deathly move.

Casually throwing the few remaining notes in the bookshelf into the storage space, Zhang Luo strode out of the door, and as expected, the heavy metal protective door with a thickness of two meters had been slowly opened at this time.

What then came into view was a wide underground space:

Bright searchlights are installed on the dark gray walls around the perimeter, and the beam of light is focused in the center of the clearing, reflecting the whole clearing. Although the size of this underground space is not comparable to the giant hollow where the underground pyramids in the desert are located, it can be called "majestic".

In the middle of the clearing, a giant drilling rig typical of a mine was installed, which was in a state of stopping, and directly below the threaded conical drill bit, an unfathomable circular hole could be seen, leading all the way to the ground.

"Are they really digging hell here......"

Seeing the deep hole in the ground, Darov muttered to himself.

Even the Monster Administration, which once hunted down all kinds of heretical creatures and raised them in underground facilities, never had the crazy idea of "digging up hell".

After all, if they really do that, the terrifying creatures that emerge from hell are likely to wipe out the entire human world!

"Well, maybe so."

Zhang Luo said as he walked slowly to the center of the clearing, stood in front of the unfathomable pit, and looked down inside.

Then, he saw an eyeball with purple pupils.

- The eyes were covered with dark red bloodshots, and the filaments attached to them looked like nerves, blocking the entire round hole. The eyeballs that were constantly rolling wildly stopped and looked at Zhang Luo when they saw him.

Facing the underground giant eyes that were enough to frighten the timid guy crazy in an instant, Zhang Luo, who had already been mentally prepared, did not panic, but just took a step forward, waved his hand at the eyeball, and greeted politely: "Hello?" ”

At this time, Darov and Hasher also stepped forward, and they were startled when they saw the eyeball in the cave:

"Hey, aren't you running yet? This could be a hell creature......" Hazin said as he stepped back.

Then, something unexpected happened.

The creature with only one eyeball in the sky answered from the ground behind the three of them: "Hello ......"

As soon as these words came out, even Zhang Luo was slightly surprised, but he quickly returned to normal and said with a smile: "You shouldn't be a creature from hell, right?" ”

Before seeing this eyeball, he thought that this research institute was indeed digging "primordial hell", but after seeing the eyeball, he had doubts about his previous thoughts:

Zhang Luo, who has seen all kinds of monsters in these days, can completely see that this eyeball looks terrifying, but there is no malice.

As for the bloodshot in its eyes, it is not a proof of madness. It's more like it's caused by pain.

Before the eyeballs could answer the first question, Zhang Luo had already spoken again: "You're in pain now, aren't you?" ”

"Yes, I'm the manager of the 'Gaia Engine', and I'm almost out of it now."

The giant creature hiding underground spoke quickly: "The drilling machine of this research institute has broken through the wall between the Gaia engine and the hell, connecting the Gaia engine to the primordial hell!" ”

"Wait a minute...... The Gaia engine is not the legendary 'world engine', right? There was undisguised consternation in Darov's voice.

-- As the mother of the earth in Greek mythology, Gaia's name is very familiar to mythologists. Legend has it that Gaia once left some kind of mysterious device underground, but since no one has ever discovered it, even the Monster Authority has never taken this legend seriously.

But today, Darov, who has always regarded the "Gaia Engine" as a joke, finally realizes that this legendary god-made machine really exists!

He was about to speak, when he heard that Zhang Luo had already asked the question he wanted to ask for him:

"Are the Gaia engines made in Gaia? What features does it have? ”

Hearing this, the administrator quickly replied, "The Gaia Engine is indeed the creation of Mother Earth Gaia, and it can forge near-perfect creatures, or infuse ordinary creatures with the power of the earth. But now, since the wall between the Gaia engine and the primordial hell has been broken, it has begun to become polluted. ”

"Oh? If that's the case, why don't you inject power into yourself? Wouldn't that be able to kill the creatures of hell? Zhang Luo asked curiously.

It sounds like the Gaia engine should be a device that can greatly increase the strength of creatures and even forge new species, and it doesn't make sense to hold this kind of good thing, in Zhang Luo's opinion.

Hearing his words, the administrator couldn't help but sigh: "In order to prevent me from abusing the power of the Gaia engine to strengthen myself, Lord Gaia has placed a curse on me, and I will never be allowed to use the engine on myself. So when the monsters of Primordial Hell attacked, I could only forge a few monsters to fight them, but they were no match for them at all......"

"I see." Zhang Luo nodded.

By this time, he had completely figured out why the city of Donrosk had become like this:

This underground energy research institute, which was put into use during the Soviet era, may indeed be to excavate the mysterious creation engine hidden underground, or of course, it may also be a death plan to excavate the "primordial hell".

But whatever their purpose, the excavation yielded disastrous results.

- Their drill rig drilled in the wrong place, opening a passage between the Gaia engine, which should not be too far away, and the primordial hell.

After that, all the inhabitants of the city were instantly wiped out by the crazy energy that gushed out from underground!

As for the city's daily "auto-repair" function, it should be the effect of the "Gaia Engine" created by Mother Earth.

After all, for a god of Gaia's level, it couldn't be easier to change the appearance of the earth.

While still thinking, the manager's voice interrupted Zhang Luo's thoughts:

"I've been patient for a long time, and I've finally waited for you! Two of you can withstand the power of the earth, can you do me a favor and accept the power of the earth from Gaia to fight off the monsters of the primordial hell? ”

Zhang Luo knew that this manager obviously recognized himself and Harsiner's identity as gods. However, even though he knew that the guy in front of him was the legendary manager of the god-made engine, he still did not forget to talk about the conditions:

"You want us to help you fight monsters, don't you? Are there any benefits? ”

Hearing this, the bloodshot purple eyeballs spun around, as if they were thinking about how to answer this question.

Then, the manager, who was hiding underground, suddenly let out a terrible scream:

"They're coming! They're coming! ”