BANG! BANG! BANG! At this moment, in the mountains behind the Heaven Palace Academy, deafening noises were echoing all around this giant chain of mountains. However, no one who wasn’t in the immediate vicinity of Xu Que and his gang could hear a sound coming from here. The people who weren’t with them couldn’t even see that there were any people in the mountains. It all seemed very tranquil.

　　Actually, this was just an illusion! Xu Que had set up an illusory Array with the Divine Aperture’s Shell. The illusory Array had recorded everything going on the mountains behind the Heaven Palace Academy and displayed it at the perimeter of the mountains. Also, the flow of Spiritual Qi and the transmission of sound were isolated by the Array. Now Xu Que and his teammates had sneaked into those mountains and started to bombard the restrictive spells with all kinds of magic arts rapidly!

　　Xu Que had planned to use his Act-Tough King’s Leg, which needed a lot of Acting Tough Points. He worried it would hamper the upgrading of the System. When he hit the restrictive spell with his Tough-Acting King’s Purple-Gold Rod, which was strengthened by his physique and Celestial Core Power, he found the restrictive spells cracked. He was so happy to see that. Now he could save a lot of Acting Tough Points and just hit the restrictive spells with the purple-gold rod directly! Although the purple-gold rod was not very efficient, it was better than attacking the spells with the Act-Tough King’s Leg, which would expend 100,000 Acting Tough Points in each attack!

　　Buttface and Mo Junchen also participated in the attack on the restrictive spells. More and more cracks were appearing on those spells. Duan Jiude and Liu Jingning, who were not powerful enough, had to act as guards at this time. With the continuous attacks of Xu Que, Buttface, and Mo Junchen, almost all the restrictive spells on the mountains behind the Heaven Palace Academy were broken. Soon, Xu Que and his teammates arrived at the largest mountain in this forbidden area.

　　“Little brat, here it is! All the previous Deans of the Heaven Palace Academy are buried here!” With a compass in his hand, Duan Jiude shouted excitedly as he pointed at this cloud-kissing giant mountain. Actually, Duan Jiude had come to this place together with Buttface before. However, they were not able to get this close. If they had attacked the restrictive spells, they would have been spotted by the Heaven Palace Academy. Fortunately, Xu Que had brought the Divine Aperture’s Shell here. Otherwise, it would have been impossible for them to sneak into this place.

　　“I have heard that this place is also the former site of the Heaven Palace Sect, where Li Xuanqi established the Heaven Palace Academy. So, besides the previous Deans of the Heaven Palace Academy, I guess even some big shots of the Heaven Palace Sect are also buried here!” Buttface said at this time. His serious expression was quite rare.

　　“The Heaven Palace Sect…was in the era of the Celestial Emperors! I guess some Celestial Kings or even Celestial Emperors are also buried here!” Duan Jiude said curiously.

　　“Calm down! When we were still on the Four Great Continents, even Xuanyuan Wanrong was not able to intimidate us! How could we be terrified by the Celestial Kings and the Celestial Emperors here? If they were alive, they would have shown up in this world!” Xu Que replied calmly. Xu Que was not sure whether the graves in this mountain were dangerous or not. If some powerful cultivators like Xuanyuan Wanrong were really hiding here, they could have big trouble! However, big trouble didn’t mean they would be killed here. As long as they could find an opportunity, they would do their best to overcome the difficulties.

　　“I believe what Faction Leader said is right! Now, the world has recovered. If the Celestial Kings or Celestial Emperors were really alive, they would have come out from their graves!” Mo Junchen said, nodding his head.

　　Xu Que smiled a bit. Actually, Mo Junchen had misunderstood him. He didn’t deny the existence of the Celestial Kings or the Celestial Emperors. What he wanted to say was that it was not the time for the Celestial Emperors or Celestial Kings to come out. For example, Xuanyuan Wanrong had just woken up on the Four Great Continents. Also, according to Xuanyuan Wanrong’s words, some big shots like her were also buried on the Four Great Continents. Among them, she woke up earliest. But it was not easy for them to come out. So, they weren’t extinct, and they were doing their best to come out from their graves!

　　“Okay! Just cut the cr*p! Let’s break the last restrictive spell and ransack their graves! The rise of the Exploding Heavens Faction depends on this action!” Buttface urged impatiently at this time. He was already itching for a try. He was wondering what kind of treasure or inheritance could be hidden in this grave. Duan Jiude, Liu Jingning, and Mo Junchen were also looking forward to the things that could be found in this place. All of them wanted to obtain fortune or opportunity that could enhance their strength. It was highly possible that a huge fortune was in front of them. It was just like a big gold mine that was waiting for their mining.

　　“Let’s do it!” Xu Que squinted his eyes and said seriously. Then, they started to attack the formation lines of the restrictive spell on this giant mountain. The formation lines of the restrictive spells or Arrays were just like the microcircuit on an electronic chip. If the microcircuits were damaged, the entire chip would stop working immediately.

　　After several days, Xu Que, Buttface, and Mo Junchen had only destroyed half of a formation line. Apparently, the restrictive spell on this mountain was much more powerful than those in the peripheral area.

　　“D*mn! Why are these restrictive spells so tough now? I am exhausted!” Buttface complained, as he frowned and took a minute to relax his paws and legs.

　　“It is highly possible that these restrictive spells were set up in the era of the Celestial Emperors!” Mo Junchen said seriously. “Luckily, these restrictive spells have been weakened over the years! Otherwise, we would not be able to cause a scratch on them”

　　“So, should we say thanks to time?” Buttface rolled his eyes as he scratched at the restrictive spells with his paws. After several days’ hard work, they had only destroyed half of a formation line, much slower progress than they had made in the rest of the mountains!

　　“Little brat, I suggest you try your Act-Tough King’s Leg here!” Duan Jiude suggested as he looked at Xu Que at this time.

　　“Okay!” Xu Que, who was about to use it, nodded his head. He knew the last restrictive spell on this mountain was extremely tough. It was the time to use his real strength. Otherwise, they might have to spend dozens of days here. The next moment, Xu Que lifted his leg and was about to use the Act-Tough King’s Leg, which would consume 100,000 Acting Tough Points.

　　BOOM! Just at this moment, an enormous bang came from the inside of the mountain, as if a deafening thunder had exploded right in their minds. Then, the formation lines in front of them started to move like tadpoles. After a short while, the formation lines formed an entrance.

　　“Holy sh*t! Holy sh*t!” Buttface and Duan Jiude, who were totally terrified, turned around and were about to escape. It was really horrible. A grave, which was thought to be uninhabited, opened the restrictive spells automatically as if it were welcoming its visitors. They had guessed that Celestial Kings and Celestial Emperors were buried in this place. How could they stay calm at this moment?

　　“Wait a minute! I heard something!” Suddenly, Mo Junchen frowned and shouted as he put his ears to the stones on that mountain. RUMBLE! However, just when his ear touched the stone, a wall collapsed and a murky, dark cave appeared in front of them abruptly. All of them were totally confused. “What’s going on?”

　　“The…Qingcheng…Mountain…” Almost at the same time, they heard an intermittent and obscure sound from inside the cave. It was a shrill voice as if someone was singing by pinching its throat. The sound of singing was not beautiful but quite creepy!

　　GASP! Duan Jiude gasped and said in terror, “My God! There is definitely a woman who is singing in this grave!”

　　“Wait! I think I have figured out the identity of the singer!” Buttface waved his paw and frowned because he knew the situation was quite complicated!