In fact, the things in the iron box are not uncommon, but they are a very common thing in their Mill Research Institute, but once this kind of thing appears in Gong Piqing's hands, the matter becomes serious-

Adrenaline, one of the few substances in the world that can exert a very strong medicinal effect on Gong Piqing, and even adrenaline can be combined with his "adaptive evolution" after entering Gong Piqing's body, exerting more than 100% of the effect.

There is even a saying within their Mill Institute: to get the adrenaline rush of the World Tree is to hold a second life.

And this is indeed the case, adrenaline is the strongest medicine in the world for Gong Piqing, because his body can completely absorb adrenaline and convert it into energy in his own body one by one, and adrenaline is like a fuel with extremely high combustion efficiency for him.

But the price of this fuel after burning was that his physical strength was overdrawn, and he even fainted from exhaustion like last time.

It can also be seen from the fact that Gong Piqing made people prepare so much adrenaline, this guy is really ready to fight this time.

"Thank you." Gong Piqing owed slightly to the panting commander who was summoned by him, but in fact, even if he was one of the four super soldiers, he did not have the authority to instruct the commander to do things, and the commander was willing to find adrenaline for him today, which can be understood that the commander was frightened by Gong Piqing's abnormal behavior today.

Or rather, the entire Mill Institute was frightened by Gong Piqing's unusual behavior today......

"Okay, without further ado, I'll leave you first, if I really have a chance to come back alive and see everyone, I will definitely repay everyone here today." After Gong Piqing finished speaking, he turned to face the artificial portal as deep as a black hole in front of him.

"Wait!" Just as he was about to jump in, the old man suddenly stopped him.

When Gong Piqing turned around, the old man was looking at him with a frown, or rather, everyone was looking at him with a serious face.

"Remember what I said, if there's danger, if the situation is out of your control, remember to keep that thing."

Gong Piqing subconsciously touched the small bulge under his battle suit, which was the metal beacon wrapped in Zhang Yuemei's note.

He nodded, "But before I leave, can I ask what this does?" Could you give it to me at this time, it must be something very important. ”

"Yes, it's a very important thing, but I can't tell you what it does right now, as long as you can promise me in front of me today that you can keep it with you all the time, then I'll be satisfied, and what you've done today and the collapse of the Extreme Cold Country plan will be borne by me alone." The old man said to him meaningfully.

"If you only ask me to take this little thing with me as if it were more important than my life, what reason would I have to disobey this only command...... Indeed, today is indeed more smooth than I imagined, and finally, I thank you again for your trust in me, then I will also say a few more words before leaving, that is, if I don't come back in time after I leave this time, it won't be long before the Demon Realm will invade our home with an army, and I hope that the Mill Institute will minimize our casualties at that time, because we are not alone, if we start preparing now, we ...... There is still a chance to turn the tables! ”

After saying that, Gong Piqing jumped off the high platform, and under the gaze of almost half of the staff, he fell into the pitch-black artificial portal in front of him......

----------

In the portal, Gong Piqing held his breath and took out the note and the beacon like the metal dice for the last time.

This beacon is still the same as just now, in addition to the metal body with a very scientific and technological color, there is also the small thing in the middle that glows with a bright blue light, the old man will definitely not let him bring such a thing for no reason, and he can see that this beacon is not simple, this seems to be some kind of magic product.

But in the Mill Institute, how can there be a magical product? The only thing they have anything to do with magic in their entire research institute is this artificial portal, could it be that this beacon is something similar to a gateway?

Gong Piqing still thinks it's not that simple, and even he has a guess, could this be the legendary evil god's heart?

After all, when he was in the country of extreme cold, the elemental mage personally said the sentence "The heart of the evil god is not in the demon world", although he didn't intend to believe this guy at that time, but what if, that guy just wanted to play a trick of "confusing the truth with the fake", and deliberately said the truth so hastily to arouse his suspicions?

But don't they all say that the heart of the evil god is a jewel the size of a palm? Although the small blue stone in the center of the beacon also looks like a gemstone, it ...... It's the size of a grain of rice......

Finally, he held the beacon in his hand and pondered for a long time, but he could not guess the reason, and finally estimated that the time was almost up, and he put the note and beacon into a small pocket on his chest on his suit, ready for this final battle.

Dazzling golden light began to appear from the portal, like a blazing sun rising from this teleportation tunnel, Gong Piqing took out an adrenaline from his clothes and injected it into his body first, this is something that can make him instantly become an "energy report", although the side effects are great, but this is the boundary he set for himself.

He still has a few adrenaline, if injected continuously, he will greatly prolong this "overrun state", and the arrival of the same exhaustion state will be delayed by him, what he has to do is to kill the mechanical hub before the exhaustion state arrives!

With the help of adrenaline, he mutated at the fastest rate ever, his bones pierced his skin like crazy coral, his muscles expanded uncontrollably, his skin hardened as if it had been petrified, and black hard scales began to grow from the surface of his skin......

While evolving, he also began to strengthen his dragon body, and finally, Nidhogg reappeared in the world, but this time "Nidhogg" was different from before.

Because this time, it was Nidhogg, who was blessed with the power of "adrenaline", and it was also the most well-prepared battle with the highest starting point in the history of Gong Piqing!

In an instant, the blazing golden light pierced the portal and appeared in the void above the country of machines, the void outside the demon world is also different from the universe outside the earth, the void is a rather deadly existence, it is like a symbol of a "mortal realm", because the various rays existing in the void are enough to kill any matter, even the current Gong Piqing is a little unbearable.

But fortunately, he was not far from the boundary of the void, and he violently flapped his wings, and the wings were instantly corroded in the void to the point that only a few broken wing bones remained, but fortunately, his body was rapidly falling in the direction of the country of machines.

With his ability to recover, even if he regrows another pair of wings, it will be a matter of minutes, so he is not afraid that he will be killed by the Void in such a short period of time.

All of this disappeared completely after he escaped into the realm of the Machine Realm, and an unprecedented sense of pleasure appeared in his mind, and his enhanced gaze was once again locked on the "umbrella cover" sticking out of the ground from an unknown distance, and the black dragon retracted its wings and fell straight down like an extinct meteor......