As the momentum of running gradually accelerated, the giant elephants' screams resounded over the entire battlefield. The orcs' army was aroused, and all orcs howled wildly, waving their weapons in their hands and raiding towards the city wall.

Shangguan Yutong bit her lower lip tightly, her beautiful face looked a little pale, and a strand of hair hung on her forehead, without even brushing it away. Her hands were clenched into fists, and the veins on the back of her white and jade-like hands were clearly visible, staring at the group of giant elephants of the Comodo War running in the front.

At this time, all the orc troops surrounding him began to gather here, and loud roars kept coming from inside. Judging from the posture, they were preparing to follow up immediately after the giant elephant broke through the city and rushed into Cameron Town in one fell swoop!

"Ah! It's dangerous!" Su Xiu couldn't help but exclaim. Obviously, no one who saw the huge size of the giant elephant and its perverted defense ability would consider them to be decorations. Although the city wall looked extremely solid, no one had the confidence that the city wall could be hit by such a giant.

"It would be great if I could dig some traps outside in advance," Xiao Lin sighed and shook his head: "It's a pity that it's too sudden!"

"If only this is the skill, Cameron would have to be flattened a hundred years ago!" Shangguan Yutong said almost gritted her teeth, "Why don't you use the Magic Crystal Cannon!"

"Magic Crystal Cannon?" Ling Xiao repeated the words. The word seemed familiar. Perhaps it was mentioned by his father Ling Tianxiao. As if to solve Ling Xiao's doubts, the original defense army suddenly decreased a lot on the city wall. Then, more than a dozen huge black cannon tubes, one person holding each other, were stuck on the battlements of the city wall, and the dark muzzles aimed at the giant elephants of the Comodo War that were getting closer and closer.

"That's great!" Shangguan Yutong showed an excited expression on her face and screamed like a little girl.

Just when the giant elephants were less than a hundred meters away from the city wall, a red light suddenly flashed from the mouth of one of the cannon barrels, and a very thick beam of light was shot silently!

The light speed was white, and you could feel the huge destructive power in it from afar! In the middle, a giant Comodo War elephant rushing in the front, the giant figure more than five meters high, was shattered by the blow before he could even make a scream! Red blood dances were flying all over the sky, and some minced meat! On the ground, a huge pit with a diameter of more than ten meters and a depth of five or six meters was blasted out!

Ling Xiao was shocked when he saw it. This was the first time he had seen a powerful weapon in this world, which had such amazing lethality! For Ling Xiao, it is probably only the masters of the Nascent Soul Stage in the cultivation world who can make such a big noise!

With my cultivation level at the Golden Elixir Stage at that time, killing the giant war elephant may be able to do it, but it will definitely not achieve such a terrifying killing effect!

The defense army above the city wall was filled with a trembling cheer!

The other giant elephants in the Comodo War below did not even use the orc command on their bodies to turn around and run back towards the headquarters. The orc troops that had just assembled were hit by certain impact, and many orcs were trampled to death. The entire orc camp was panicked!

"If you take this opportunity to break out of the city, you might be able to fight back these wild beasts in one go!" Shangguan Yutong looked at the closed city gate and said with some regret.

Ling Xiao suddenly asked, "Since this magic crystal cannon is so effective, why didn't you take the opportunity to kill all these giant war elephants just now?"

Shangguan Yutong gave Ling Xiao a blank look: "How did you come from the powerful lethality of the Magic Crystal Cannon? Once it is launched, at least a dozen second-level magic beast crystal cores are required! And it must be the same type of crystal cores! Otherwise, why are the crystal cores so expensive? Many of them are acquired by the state! As a strategic reserve! No one will use this thing unless it is absolutely necessary!"

It seems that except Shangguan Yutong, the other teachers did not understand the knowledge of the Magic Crystal Cannon. They were shocked when they heard it. Oh my god, this is not a powerful weapon, it is simply a bottomless pit that swallows gold coins!

Shangguan Yutong continued: "And this thing is huge and heavy, with inconvenient transportation. There is no space ring that can take away such a big guy. In war, it is almost always defending the city. And you have also seen it. Its lethality only acts within a hundred meters. Therefore, magic crystal cannons are usually used for deterrence. If this terrible giant elephant of the Comodo War appeared this time, we would probably have no chance to see it!"

Su Xiu chuckled at this time, "Teacher Shangguan, you know so much!"

Shangguan Yutong smiled reservedly and said, "I just read a lot of classics in my daily life. When it comes to knowledge in this area, I think the strongest one should be Teacher Ling Su!"

Suddenly, when he heard Teacher Shangguan mention his sister he had never met, Ling Xiao was suddenly interested and sounded.

Several other teachers looked at Ling Xiao, then nodded in one go, and Su Xiu said, "Yes, Teacher Lingsu hasn't come back for a long time. It's been more than half a year since he left!"

Shangguan Yutong also showed a look of nostalgia on her face and said softly: "She should be still in the Zichuan Empire now. When she left, she said she had obtained an ancient drawing, which was located in a mountain range of the Zichuan Empire. She was alone. I was really worried about her!" She said and looked at Ling Xiao with a smile: "You must become stronger quickly, and then your sister will be protected!"

Ling Xiao nodded. The first time he heard someone talk about his sister, he felt a strange feeling in his heart. Ling Xiao was always vague about his brother and sister he had never seen before, and at the same time he had a strong desire in his heart, as if he felt very close to him when he heard the name!

"The orcs are temporarily retreating!" Xiao Lin pointed to the orc troops retreating into the Budami grassland, and said, "We have a chance to enter the city!"

"Can it be their trick?" Su Xiu said softly.

Shangguan Yutong shook her head: "They just suffered a big loss, which makes it unlikely to be cheated!"

Sure enough, the orcs' large army retreated for a few miles and then began to rest.

At this time, the caravans and adventurers trapped outside rushed to the city gate. When the defense army saw the orcs retreated, they opened the city gate. Ling Xiao and his men took the opportunity to sneak in. Because the orcs were so easy to identify, the tired soldiers did not even check too much, so they put the group of people in and then quickly closed the city gate.

The streets of Cameron Town are no longer as lively and prosperous as they were in the previous few days. The streets are deserted and there are almost no people. Several people quickly returned to the Brilliant Hotel and saw a few teachers below. After asking, they finally felt relieved that all the students are currently very safe, and they are not even out, and they are all staying in the hotel.

Ling Xiao was eager to refine the foundation building pill. After greeting Shangguan Yutong, he went back to the room. Ye Xiao was indeed not there. Because it took a certain amount of time to refine the foundation building pill, he went to see Isha first. Seeing Ling Xiao return safely, Isha was so happy. Although it was a bit strange to Ling Xiao's request not to be disturbed, he agreed obediently and did not ask.

Ling Xiao returned to the room, locked the door, and took out the top-grade alchemy furnace that had been prepared from the ring. This alchemy furnace was induced by first-level crystal cores. It can be regarded as an extremely luxurious alchemy furnace. It is not a super rich man, and ordinary people will definitely not dare to use it.

At one time, Ling Xiao took out the purple and blue fruit, the heart of the earth dragon and the chiang grass. He was silent for a while and prayed in his heart to the blessing of the masters of the Shushan School, and it would be best to succeed in one alchemy.

Speaking of which, Ling Xiao is quite sure of refining elixirs, but this time it is of great significance, so he can't help but be cautious.

Finally, when his mood was completely calm, Ling Xiao cut a piece of Earth Dragon Heart with a jade sword and put it into the alchemy furnace first.

The pure power of the first-level fire crystal core quickly heated up the alchemy furnace. At this time, Ling Xiao's mood also returned to the most stable state and fell into a kind of ethereality.

If you are not careful in refining alchemy, you may fail to refine it if you are not careful.

As time passed by minute by minute, Ling Xiao's forehead gradually increased, and elixir refining consumed extremely mental power. At the same time, it also had great benefits for the increase in mental power!

Finally, when he heard the sound of the heart of the earth dragon in the alchemy furnace being refined, Ling Xiao quickly used tools to pick up the cover of the alchemy furnace, put two dianthus grass in it, and continued to refine it. At the same time, a refreshing fragrance came from the alchemy furnace. Ling Xiao had a smile on his lips, and he didn't care to wipe the sweat from his forehead.

Finally, after more than four hours, the refining of the pill came to an end. Ling Xiao opened his eyes and stared at the pill furnace with some tension in his heart.

At this time, a panic sound suddenly came from outside, and then Isha knocked on the door: "Brother Ling Xiao, open the door quickly, the orcs are in!"

Ling Xiao looked motionless, staring at the alchemy furnace intently, removing the last trace of firepower, and opening the cover of the alchemy furnace. Suddenly, the room was filled with fragrance!
Chapter completed!