Suddenly, a circle of black holes slowly appeared in the middle of the circular array at the entrance of the cave at the upper end of the fortress, and the phantoms of five giant dragons flew out of the black hole and rolled towards the "Great Cave Mansion" in the air.

Lu Zhan wanted this opportunity, only to see him jump up, his body shot like lightning to the black hole at the top of the circular formation, and then drilled his body into the black hole......

At the same time that the two puppet kings and the four groups of black iron class students had a fierce battle in the sky above the silver sand castle, there was also a fierce battle on the suspension bridge in front of the south gate below the silver sand castle.

The two groups of members met at the third pass, and after several insults, they finally rushed through the level of the woman in green, and teleported from the teleportation array to the cemetery, fortunately, the level in the cemetery had been broken by Lu Zhan and others at this time, so they walked all the way through the cemetery unhindered and rushed to the south gate suspension bridge of Silver Sand Castle.

But what they never expected was that they would be subjected to the fiercest battle in this assessment here, and the members of the Black Iron Class of the "Cloud Tower Branch" who were guarding in front of the suspension bridge launched a fierce attack on them like crazy, and they were extremely vicious, as if they had an indissoluble feud with them.

In terms of strength, the eight students of the "Xiaojinghu Branch" are even a little more powerful than the students of the "Cloud Tower Branch", but the students of the "Cloud Tower Branch" guarding here are more than 30 people, and almost all the students who are guarding the other three gates have gathered at this gate at this time, and the number of students is far overwhelming Jiao Jinyang and Zhu Mingjun.

The outcome of the battle was tragic, and half of the eight cadets were wounded. Jiao Jinyang, who was the most seriously injured, had to use the "exit spell" on the crystal plate to withdraw from the assessment.

The funny thing is that these eight students are all die-hard followers of Zhou Binglin. If they knew that the sin they had suffered was actually bought by Zhou Binglin for a lot of money. I'm afraid I'm going to vomit blood on the spot.

Besides, after Lu Zhan drilled into the hole of the fortress, he quickly flew to the bottom of the hole, and in front of him was a spacious Yongdao, and he ran forward more than ten zhang along the Yongdao, and suddenly opened up in front of him, and a square hall appeared.

Standing in the square hall and looking around, he saw that there were four metal gates on the surrounding walls, and each metal gate had a small array of red lights on the side of the door.

He walked to the first metal gate on the left. I put my ear to the door panel and listened to the movement behind the door, only to hear a faint rumbling sound behind the door, as if it was the sound of a mechanical transmission inside.

He walked to the door and glanced at the small array that was shining red, but saw a small dot in the center of the array shining with golden light, which looked like the eye of this small array.

Lu Zhan stretched out his finger and pointed at the array eye, only to see a golden light flash, and the red light in the small array turned into golden light in the blink of an eye.

Then I heard the metal door "whoosh" and moved to the side, revealing a large room the size of half an acre of land.

But I saw that the large room was full of various mechanical parts, and there were tens of thousands of large and small parts. At this time, all the mechanical parts were running at full speed and high-speed, making a deafening roar.

- It turns out that this is the transmission part of the fortress puppet!

Lu Zhan stood in front of those huge mechanical parts. I thought that if the transmission machinery here was destroyed, then this sturdy fortress in the air would lose power and stop working, but once this room was destroyed and the fortress lost power, what would happen next? Will the fortress fall from the sky? If it falls, then the students who are locked up in this fortress will suffer.

So now the priority is to get the cadets out, and only when they are safe can we consider paralyzing the fortress.

So he withdrew from the large room to prepare for another plan.

As soon as he left the door of the room, he heard a whistling sound from the top of the corridor, and then saw the phantom of a giant dragon flying in from the corridor, and there was a person rolling in the light and shadow, and if you looked closely, that person was Fang Tong of Zhao Jian's group.

I saw that the phantom of the dragon flew to the second metal door on the right, and the metal door opened automatically with a "whew", and the phantom of the dragon flew into the metal door, throwing Fang Tong behind the door, and then flew out of the metal door, and the metal door quickly closed automatically.

After the phantom of the dragon flew out of the corridor, Lu Zhan walked to the second metal door on the right, he glanced at the small array that flashed red by the door, stretched out his finger and pressed the array eye in the center of the array.

With a "whew", the metal door moved to the side.

Lu Zhan looked inside the door, but saw that behind the door was a slightly smaller room, some of the eight students of the Black Iron Class were sitting next to the wall, and some were sleeping on the ground, all with a resigned expression, obviously hearing the door open, but none of them had the desire to run out of the door.

"Hey, everyone," Lu Zhan greeted inside, "It seems that you guys are staying here very leisurely." ”

"It's Lu Zhan!" Li Yuerong and Fan Qingqing stood up from the corner of the wall in surprise, ran to the door and asked, "Is the assessment over?"

"No, I have to settle this big guy before the assessment is over. Lu Zhan pulled Li Yuerong and Fan Qingqing out of the room, "You guys run quickly, go out along that corridor, and you will reach the entrance of the cave above, and when the circular formation at the top of the entrance is opened, you will get out." ”

"Come on, I don't want to run away. Another student lay on the ground and said lazily: "I advise you not to think in vain, this fortress is the cave mansion of the Refined Transformation Grade Ancestor, just with our manifest-level cultivation, how can it be leveled, I think we should stay here and wait until the end of the assessment." ”

"Whether it's flat or not, you have to try it. Lu Zhan insisted: "If it is changed to the battlefield, this is the enemy's prison, you cultivators are caught, you can't be caught by those purgators to extract the refining essence and refine the cave soul bead, when the time comes, you will obviously have a chance to run away and give up like today?"

Several students looked at each other by Lu Zhan's words, Fang Tong had been sitting in the corner looking at him since Lu Zhan appeared from the door, and then walked out of the corner and said to those students: "It makes sense, let's go, everyone get out of here quickly." ”

The few students who didn't want to leave were all supporters of Zhou Binglin, and when they saw Zhou Binglin's confidant Fang Tong speak, they got up and walked out of the room, through the square hall, and into the corridor leading to the outside.

After Lu Zhanmu escorted the eight students into the corridor, he walked to the metal door of the first room on the right.

He opened the metal door, only to see that behind the door was a round room, in the center of the room there was a deep groove that was recessed into the ground, and in the groove was placed a black crystal stone with a diameter of about two feet, but he saw that there were several circles of blue lightning in the black crystal stone, and a golden coat of arms was engraved in the center of the spar, and in the center of the coat of arms was written: "Flying Obsidian" four small golden characters.

"It turns out that this is the 'Flying Obsidian'. Lu Zhan said in his heart. Half a year ago, when he followed Ling Yuyao from the "Falling Star Continent" to return to the "Yunhai Yinzhou" by a flying painting boat, he had heard the crew on the painting boat say that the "Cloud Piercing Immortal Boat" swimming above the sea of clouds all used "Flying Obsidian" as the power source for flight, and it turned out that "Flying Obsidian" was this kind of black crystal stone.

Presumably, this is the core power part of the entire Flying Fortress.

Lu Zhan turned his head to look at the scene in this room, and saw a lotus-shaped platform on the side of the room, on which dozens of blue crystal-like squares were inserted, each of which shone with a blue glow.

Lu Zhan's heart moved, he walked to the lotus-shaped platform and looked up and down, this platform gave him a sense of déjà vu, thinking about it carefully, he remembered that there was also such a form of lotus platform in the main control room of the "Floating Immortal Island" back then, but the lotus platform was several times larger than the one in front of him, and the appearance was slightly different, but the blue crystal strips inserted in the middle of the lotus platform were the same.

Now it is certain that this Lotus Platform is the control center of this fortress, and the person who controls the puppet king of this fortress is to inject divine thoughts into this Lotus Platform to control the entire fortress, just like when he controlled the "Floating Immortal Island" through the "Wanhua Lotus Platform".

At this time, Lu Zhan's eyes caught a glimpse of something shining golden next to the lotus platform, and when he got closer, it was actually two gold medal orders!

There was still a piece of paper pressed under the two gold medal orders, Lu Zhan picked up the paper and looked at it, there were two lines of words written on the paper: "If you see this main console, congratulations, you have successfully controlled this fort, and these two gold medal orders are your reward." ”

Lu Zhan smiled, and was about to bend down to pick up the two golden cards, when he suddenly heard Li Yuerong's exclamation behind him: "Watch your back." ”

Then he heard the wind howling behind his head, and he hurriedly leaned forward to avoid the important part of his brain, and then he felt a sharp pain in his back, and he had been hit by a heavy object in his back.

He toed a little, and with the help of the gravity that smashed on his back, he flew forward, and fell to the ground over the console in front of him, only then did he see that the person who attacked him behind him was actually Fang Tong!

Seeing that he was holding a thick iron rod in his hand, he saw that Lu Zhan was smashed upside down and flew out by himself with an iron rod, so he thought that he was either dead or fainted, so he did not rush to chase Lu Zhan again, but leaned over first and picked up the two gold medal orders on the ground.

At this time, Fan Qingqing and Li Yuerong ran into the room, "Fang Tong, what are you doing here?" Li Yuerong asked loudly: "You dare to beat people and rob other people's golden orders." ”

Fan Qingqing also shouted angrily: "We just saw you sneaking back, and we knew that you had bad intentions, and sure enough, you were actually doing a job of making money and killing people." (To be continued.) )