What Kun Wu took out was a proton heavy cannon, a fifth-level energy degree, not to mention whether the target would die or not in one shot, anyway, in the atmospheric environment, it could directly destroy tens of thousands of kilometers of ecological circles.

Kungo was just going to be deep underground, otherwise no matter how crazy he was, he wouldn't have been able to use this thing in the atmosphere.

The proton cannon was crafted by Kungo from some alternative materials, so it didn't look like a cannon and more like a giant crystal spear.

Those crystals are a kind of energy crystals abundant in this world, and they are the same energy source as the pillar type of this world along with the beast core.

Kungo had knocked out a lot of money from Agart in various names before, and now he finally put it to use.

"This, this is the Sadullon Crystal? What is this, sir? Of course, Agart recognized the crystals at a glance, but he didn't know how they came to be the way they were.

The Sadullon Crystal can barely be crafted, as it is a crystal full of energy that can detonate if it hits too much. Therefore, Sadullon crystals cannot be polished and manufactured in any other way except that they can be cut to a suitable size.

Looking at the crystal spear in front of them, both Agette and Isidor couldn't believe that this thing was made of Sadullon crystal.

"Spear of Annihilation! If this thing can't kill the seal either, then let's run, and think of another way when we get out! "Kungo didn't sacrifice his ideas here.

While the mechanical squid could still block those underground demons, Kungo quickly set the parameters of the proton heavy cannon, and then pulled Agmet and Isidor to turn around and run.

He was not afraid of the radiation from the launch of the proton heavy artillery, but the two people around him couldn't resist it.

After running for a hundred meters, Kungo turned on the defense screen that had been improvised again, and only then did he let a mechanical squid activate the proton heavy artillery.

After the mechanical squid pressed the launch button, the entire crystal spear began to tremble, countless bright energy lightning bolts jumped over its shell, and a roar resounded underground.

Agette and Isidor felt a palpitating sensation rush over their hearts at the same time, and a faint itch ran down their spines. Of course, they didn't know that it was caused by radiation, and they didn't know that they would be killed by radiation in a matter of seconds as soon as they left the barrier, which was so thin that it was not heavy.

Because it was a temporary thing, the charge of the proton cannon seemed to be quite slow, and it was still in a state of charge after a full thirty seconds, but the radiation it emitted was already to the point where it could kill the surrounding underground demons.

Patches of Underworld demons fell, their bodies looking intact, but completely burned inside.

As if sensing danger, a muffled roar of thunder suddenly came from the place where the seal was sealed, and then a huge head was seen drilling out of the seal where the black mist was completely enveloped.

It was like the head of a huge underground demon, but the diameter of an eyeball was more than five meters, and the huge head appeared from the black mist, opened its bloody mouth and bit towards the proton heavy cannon.

"Oh my God, what's that!" Isidor couldn't help but exclaim.

But the huge head was still a step slower, and just as it emerged from the black fog, the proton cannon that had been charged for forty seconds finally reached the critical point of launch.

On the muzzle of its spear, a ball of light with a diameter of one meter shone like a bright star.

Then, the ball of light erupted into a torrent of light, easily piercing the huge skull completely, and then penetrating into the seal without diminishing its residual power.

A brief silence was followed by an astonishing explosion.

Between the earth and the mountains, the entire underground palace was trembling violently, as if the underground palace would collapse in the next second, and even the city on the ground would fall.

In fact, above the ground, the White City also shook in the midst of the violent earthquake, and everyone ran out into the street or hid in their homes in surprise.

Fortunately, this is not a real earthquake, and fortunately, the buildings in the White City are very solid, except for a few buildings that have fallen into disrepair for a long time, and most of the area is just a false alarm.

Underground, a huge explosion blew away all the black mist, revealing the seal that had never shown its true face.

It was a door, a door that looked like a crack.

From time to time, black mist flowed out of the door, but because this door had been heavily damaged by the proton heavy artillery, most of it was destroyed, so the amount of black mist seeping out of the door became extremely rare.

The three of them returned to the place where the seal was sealed, and Kungo put on a rigid shield, and at the same time helped the two of them get a protective collar to resist the radiation.

"This, what's inside the seal? A door? Agart looked at everything in front of him with a strange expression.

The so-called seal is actually a cracked boulder the size of a house.

At that time, the Ming Emperor asked people to dig up the star stone, and finally cracked the boulder painted with mysterious and complex patterns on it, and then the underground demon appeared from the crack.

Emperor Ming once entered the inside of the boulder through the crack, but when he returned, he only brought out the sentence "That is the dark side of the world", and no one from the Arossos royal family after that entered the seal again.

Each time they sealed, they only used their own blood to light up the original seal (pattern) on the boulder.

And now, the boulder was directly vaporized by the proton heavy artillery, and what remained in sight was the door like a crack.

Dark gates.

Kungo didn't feel any spatial fluctuations from the gate, but he had a rather strange feeling.

In an instant, all kinds of feelings of disobedience came to his heart, making Kungo's consciousness go into a trance.

"Sir, sir?" Seeing Kungo's strange expression, Isidor hurriedly woke him up.

Kungo suddenly came to his senses, blinked, and looked down at something hanging from his waist.

It was something like a stone, and there was nothing on it.

When Kungo saw the smooth stone, he immediately laughed: "I see, I see! ”

"Did something happen?" Agette looked at Kungo inexplicably.

Kungo shrugged: "It's nothing, it's just that I know something." I'm going to go in and have a look, what about you? ”

Agette and Isidore's faces suddenly changed: "Absolutely not. Sir, we don't know exactly what this is, and rushing in is likely to cause quite serious consequences! ”

Kungo shrugged: "Really? His gaze was suddenly as sharp as a knife, and he carried Agmet and Isidor out of his shoulder, and plunged headlong into the chasm.