The Iron Guard is the internal energy core that was taken out by Dadong and died, and it has no external injuries on its body, so the structure is very complete, and it can be used for study.

There are corresponding disciplines in engineering that can analyze the structure of various types of machinery.

Along the way, Dadong has 'dissected' a lot of Iron Guards, and the structure of this kind of mechanical creature is not too complicated, and it is completely incomparable to the robots in the technological world.

The core technology of the Iron Guard should be its energy system, a single magic energy crystal, can make the three-meter-tall Iron Guard move as usual, with a huge power far beyond ordinary creatures.

This kind of energy system, whether it is used to make similar steel puppets or used as a power system, is very useful, and Zhang Kai is willing to let Dadong try to make it.

But the electromagnetic shock has a damaging effect on this kind of energy system, and after a few electromagnetic bombs came down, Dadong only saw the energy system after it was destroyed.

"Alas, it still doesn't work, this energy system is too complex, unless I get a complete one, I can't parse it at all."

"But if I didn't use the electromagnetic bomb, I wouldn't have been able to dismantle the Iron Guard directly, and in the end I would have gotten a bunch of broken copper and iron."

Dadong was very disappointed, this was a completely unsolvable problem, whether he used electromagnetic bombs or not, it was difficult for him to get a complete energy system.

Just thinking about it, Zhang Kai and the others had already entered the steel fortress, and this abandoned city was almost full of the remains of various steel jungles, which felt like a post-apocalyptic scene.

Above the ruins, only hordes of Iron Guards roamed.

These Iron Guards are the last guardians of the abandoned city, clearing all intruders.

"I released the Eagle Spirit to take a look, there are several important locations in the steel fortress, one is the arsenal that refreshes the steel guards, there is also an operation center, and then there is the energy control center in the center of the city, that is, the control core and energy hub of the entire city!"

Yin Jiyao released the Eagle Spirit as soon as she entered the Steel Fortress, and the information it fed back accurately identified the important areas in the Steel Fortress.

"That central fortress is the core of the entire city, if we want to take the city, we must control the central fortress!"

Zhang Kai also made it clear at once that the core goal was clear, the area of the steel fortress was much larger than that of the university town, and the whole city was divided into multiple areas.

"Let's go! Let's go all the way! Zhang Kai reminded the crowd that they began to clean up the mechanical creatures they encountered along the way.

The monsters in the Iron Fortress are of a higher level, but they are all the same when farmed with electromagnetic bombs.

With Dadong, even the boss-level Iron Guard, that is, the difference in demolition time, is easier to deal with than other types of boss bosses!

The crowd advanced quickly, and in three hours they saw a barracks in front of them.

There are quite a few Iron Guards in it, and when they find an intruder, they will be dispatched, and there are also some boss-level bosses!

"Haha, these steel guards don't need us to lead them at all, they rushed out by themselves, just let us brush them up!"

Zhang Kai and others were blocked near the barracks, and from time to time a wave of steel guards rushed out of this small monster farm, brushing wave after wave, and other players were absolutely going to collapse in the face, but Zhang Kai and others were extremely happy.

Zhang Kai has already summoned several of his undead Grand Bosses and asked them to be in front, so that players can farm the Iron Guards in the back.

Rumble!

As an electromagnetic bomb exploded, dozens of steel guards fell to the ground together, and everyone's experience points skyrocketed, and now the lowest level players in the team are all level 22.

"Look! That's the Iron Knight! Second Order Grand Boss! Dadong exclaimed, only to see a level 38 steel knight rush out of the barracks, and the electromagnetic bomb only made its movements pause slightly.

At this level, the resistance to electromagnetic shock is also greatly improved, and the control effect is only about 0.5 seconds.

Fortunately, there were several second-order big leaders on Zhang Kai's side, and they all stopped the Iron Knight and cleared the surrounding Iron Guards first.

The Iron Knight's hand-to-hand combat ability is very terrifying, it is one against three, but it does not fall behind, and the blood volume slowly decreases under the output of Lao Wang and others.

The mechanical creature ignores most of the mental spells, and even if the HP is reduced to 10%, Zhang Kai's overlord aura has no effect on it.

"Kill him!" With Zhang Kai's counterattack and slashing iron, the last bit of Iron Knight's HP was emptied.

Just as Zhang Kai and the others were about to enter the barracks, he vaguely saw a black shadow flash away, and Yin Jiyao and Hu Bo seemed to feel it.

Eagle Spirit!

The eagle spirit that shone with silver light was released, and it temporarily illuminated the area, and a vague black shadow emerged near the barracks.

Hu Bo immediately threw a tracking technique, and the other party immediately had nothing to hide!

Shadow Demon: Boss, second-order creature, low-level demon template, level 36, HP 500,000.

The Shadow Demon didn't expect to be discovered, and the pale blue demon immediately bared its teeth at everyone, and then pounced.

"Low-level demons are really stupid, there are so many of us, you dare to go up?" Zhang Kai smiled, just the undead leader he drove could torture this shadow demon out of!

The Shadow Demon's most powerful stealth ability is restrained by the tracking technique, and its health drops so quickly that when it drops to about 20%, it will run away!

Zhang Kai and Hu Bo glanced at each other: "Chase it and see where it goes!" ”

The fact that the Shadow Demon actually appeared in the steel fortress was obviously not as simple as it seemed.

The Steel Fortress is all mechanical monsters, and this Shadow Demon is definitely not refreshed here, and it is obviously nothing good for demonic creatures to sneak into the Steel Fortress from the outside!

Zhang Kai and Hu Bo both entered a state of invisibility, and some thieves also followed invisibly, and the eagle spirit opened the way for them in the sky, which could avoid the steel guards of the brigade.

The Shadow Demon was also apparently aware of the Iron Guards, and it made its way to a barracks in the southeast corner of the Iron Fortress.

"Bullet Crown, there are Shadow Demons around here too!" Hu Bo stopped, and he reminded.

Zhang Kai also faintly felt that his perception attribute was still very high, and with the eyes of death, he could naturally see that there were fluctuations in the air!

Hala!

With a strange sound, a black shadow suddenly appeared behind a thief player, and the most classic shadow shuttle + shadow assassination combo of the Shadow Demon was shot!

Bang!

The level 22 thief was penetrated through his body at once, and he was killed directly on the spot!

At the same time, a lot of shadow demons appeared near the barracks, and they shot one after another, and they instantly felt like they were in a demon cave!