Under the construction of two or three hundred capable people in full swing and concerted efforts, soon, the finishing work of the fortifications and barricades was successfully completed within the specified time, Zhao Fei looked at the bridge that stretched to the end of the bridge across the river, where various traps, barricades and fortifications were placed, and even the terrain was under the influence of the capable people, and the bridge had undergone great changes, and he couldn't help but feel emotional.

"These guys...... It's crazy......"

With the efforts of many capable people, the bridge crossing the river of about one kilometer has been clearly divided into two parts: starting from the 'barrier' at the end of the bridge, to the center of the bridge, there is a forbidden area of life that contains a variety of terrains, slippery and difficult to move forward, lava lakes flowing with hot magma, swamps that can slow down, and quicksand that can also make it difficult for demons to move. It is all modified on the premise of not harming the bridge itself, so the lethality has been greatly weakened, and it can only be done to the extent of delaying the actions of the demon clan, however, the members of the Mustang Warband naturally took this into account when arranging these, so they placed many black metal balls with unknown functions in these terrains, but engraved with mysterious runes.

And after these terrains, the ability to build a concrete wall hundreds of meters long, extending to the other end of the river bridge, that is, the area where the ability is located, two ends wide, the middle narrow hourglass narrow passage, when the demon clan passed through the first part of the area, they will be forced into such a narrow passage one after another, and at the other end of the passage lined up, the ability that has long been ready to go, will release the power of the mind to bombard the demon clan that emerges indiscriminately, just like the feeling of whack-a-mole.

Now that the time is approaching the start of the battle, although the fortifications have been constructed, but the thought of fighting with thousands and countless demon clans, Zhao Fei is still a little bottomless in his heart, and asks in the spiritual connection: "Crow, what are you talking about these fortifications...... Does it really work? If the demon clan was really that stupid, in seven years, the end of the world should have ended a long time ago......"

"It's okay, if there are no big demons or elite demons in the opposing camp, then this level of fortifications is enough to keep them out......" After a while, the crow's affirmative answer came back: "The demon clan legion with the commander class, and the demon group without the commander class, but they are two completely different concepts, they have no less shrewdness and cunning than human beings, it is precisely because of the existence of these tricky commander classes, so human beings have not been able to end this end of the world......

As the crow said, the concrete wall is basically four or five meters high, and the thickest area of the wall is only about forty centimeters thick, and there is no capping above, to be honest, such a humble fortification, it can only bully the low-level demons who have no wisdom at all, and no overall situation, if there are big demons, or elite demons, such as demon clans with intelligent existence, then under their command, these low-level demons will definitely dig directly through the concrete wall, Ignore all obstacles on the road and kill them directly......

"However, two or three months ago, the [Great Counterattack] battle carried out by your human race has beautifully annihilated more than ninety percent of the big demons and elite demons in the Martial City, two demon king-level demons, and even the remaining demon king was seriously injured and his whereabouts are unknown...... After losing the suppression of the Demon King, presumably the Great Demons and Elite Demons around the world will have internal friction for a long time...... Hehe, I have to say...... You humans are really doing a good job...... It is estimated that there are basically only a large number of brainless low-level demons left in the entire Martial City now......"

The crow did not hesitate to praise the achievements of the human race two or three months ago, Zhao Fei could hear that this strange old man, there was not the slightest irony in his words, nor the slightest resentment when he was killed by the human, he didn't even care about the position of the demon and the human race, and he praised the battle launched by the human race from the bottom of his heart......

But there was no time for any more small talk, and while the crows were appreciating the humans without hesitation, in the distance, the 'barrier' at the end of the bridge had begun to take on an unusual ......

On the other side of the 'barrier', countless low-level demons are gathering at the other end of the bridge across the river, constantly hitting the 'barrier', but when the defense mode is turned on, these low-level demons' actions are like moths to a fire, countless low-level demons are dancing towards the transparent and invisible 'barrier', when they hit the 'barrier' surging with strong energy, these low-level demons, the first to turn into ashes is their indestructible bone claws, and then their slender arms, In the end, their hideous and twisted faces will be burned to ashes by the strong energy along with their torsos and legs, and they will not be able to cross the invisible 'barrier' until they die.

And now, the black rune pillars that originally stood on the other side of the river, because of the large reduction in energy output, the magic runes that were originally engraved on the rune pillars and should be flashing with various colors of brilliance began to weaken with the passage of time, and the transparent and invisible 'barrier' gradually revealed its last posture before being destroyed because of the reduction of energy output!

Originally, the 'barrier' that would turn into ashes directly after hitting it became a different form because of the reduction of energy output, although it was still in a transparent and invisible state, but when those low-level demons who were moths to the fire hit the 'barrier', they would no longer be burned directly to ashes by the 'barrier', but when they hit the 'barrier', it would be like hitting a transparent wall, and the lines composed of hexagonal squares would appear with the impact and attack of the low-level demons.

"This ...... This is the 'barrier' that protects the cultural district?! Zhao Fei, who was observing the situation in the distance with a military telescope, was shocked to see that because he was attacked by countless low-level demons, countless hexagonal squares appeared densely in the void, and he also realized that in the past seven years, the magic technology developed by human beings did not seem to be as simple as he imagined......

"Alright...... Ah Fei, it's time for the chatter to end......" Just when Zhao Fei was shocked, Fang put away his previous smirk: "Get ready for battle, the 'barrier' is going to be completely invalid, those low-level demons...... It's time to come, and then, just act according to the plan you made before, don't worry...... This war will be our victory! ”

"Yes! I beg you...... Don't put up a death flag anymore! During the Fourth Holy Grail War, Shi Chen also said this! And then he died!! Seeing that Fang Ke unconsciously made a death flag, Zhao Fei covered his face with some tears in his eyes.

Click-click-click!

Just as the two were talking, a crisp sound like glass breaking sounded, coming from the opposite side of the bridge across the river, and when the continuous breaking sound sounded, the last defense of the 'barrier', with the attack of the low-level demons, turned into a sky full of crystal fragments, and quietly disappeared into the sky.

And after the 'barrier' was destroyed, the ...... followed. Countless low-level demons, after losing the obstacle, the rapid attack!!

It was like a flood that burst the embankment, and at the moment when the 'barrier' shattered, the low-level demons rushed towards the other end of the bridge like wild horses, and with their physical fitness close to the limit of the human body, the first batch of low-level demons rushed directly into the swamp that was difficult to move forward!

After falling into the quagmire that was difficult to move forward, the first batch of low-level demons who were running at extreme speed immediately descended at a speed visible to the naked eye, and the demon clan that followed directly collided with these low-level demons in front of them, and the speed suddenly dropped, and they were suddenly hit by the same clan behind, and these low-level demons who were in the lead were suddenly knocked on their backs, and the scene became extremely chaotic for a while!

Of course, even if the scene becomes chaotic, it can only slightly block the progress of the low-level demons, and it cannot produce a lethal effect, and the members of the Mustang Warband who are responsible for arranging the defense line naturally also take this into account, so in each special terrain, countless black metal balls are arranged, and now, these black metal balls finally show Zhao Fei the meaning of its existence.

These black metal balls arranged on the surface of the ground have automatically activated the attack command when the low-level demons have just rushed into the swamp, and the sleek metal balls engraved with countless runes began to deform, and the bottom of the metal balls cracked four holes, and four sharp claws like blades stretched out from the cracks, tightly grasping the ground of the swamp, and then the metal balls were like small flowers blooming, and the balls were directly split in half, revealing the attack core that was flashing with colorful light inside!

The trajectory had already been calculated before the attack, and the attack route was aimed at the black metal balls of the low-level demon group in front of him, and finally the colorful energy balls were sprayed out, and these colorful magic bullets were like meteor showers at this moment, directly smashing into the chaotic demon group, and then successively produced an explosion effect no less than that of a grenade!

Rumble! Rumble! Rumble! Rumble! Rumble! Rumble! Rumble!

The colorful magic bullets themselves are composed of an extremely unstable pure energy structure, so after crashing into the demon group, it triggered one explosion after another, and the explosion of the magic bullets directly caused a small energy storm, and those low-level demons who fell into the energy storm, even if they were protected by the [shell], but in the end, they still couldn't escape the end of being twisted into black blood and minced flesh all over the ground!