"Haha! What did my senior sister say, I have no other advantages as a person, but being well-read has always been my greatest advantage. Doesn't Senior Sister also like to study some strange things, otherwise how would she know about this ghostly tiger and stinging fox!" Cheng Yu was sweating profusely, this woman was really suspicious.

"Is that really the case?" Xinyun looked at Cheng Yu's eyes seriously, but she was disappointed, Cheng Yu's expression was natural, his eyes were deep, and he couldn't see his heart at all.

"Of course, otherwise what does Senior Sister think?" Cheng Yu said with a smile.

"How do I know you!" Xinyun glanced at him, always feeling that Cheng Yu was hiding a lot of secrets.

"Huh. Cheng Yu smiled lightly and didn't say much.

"Senior Brother Yu, since you said that these demonic beasts are very intelligent ghostly tiger stinging foxes, then there must be other passages here?" Xinhe asked.

"Then maybe the Bone Tiger Thorn Fox is indeed a kind of magical beast with a high IQ, but no one knows if there is a secret path here. Cheng Yu shook his head and said, he was just a guess.

"Shall we get out of here now, or should we continue to search for a while and see if there is a secret passage?"

"Forget it! If we can find it, we should have found it after looking for so long, let's go to the other two Yongdao to have a look!" Cheng Yu shook his head, feeling that there was no need to look for it any longer, compared to the secrets that he didn't know anything about in this Yongdao, he would rather find the Earth Demon Rhino sooner.

Everyone nodded and said no more, retreating into the corridor to leave.

But when Cheng Yu was the last to walk into the corridor, Huo Yu stayed in the hall and shouted.

"Huo Yu, what's wrong?" Cheng Yu felt that Huo Yu was calling him, and quickly turned around to look at Huo Yu Dao, who was standing in the hall.

Instead of answering him, Fire Feather opened its mouth, and a fireball blasted towards the east wall, cremating and disappearing, but the wall did not react.

"What is Huo Yu doing? Is there something wrong with that wall?" Seeing Cheng Yu's abnormal movements, the others also returned to Yongdaokou, just seeing Huo Yu's strange movements, and asked puzzledly.

Cheng Yu didn't speak, but returned to the hall, came to the wall where the fire feather bombarded, touched it with his hand, and then put his face on the wall and listened, there didn't seem to be anything wrong.

"Huo Yu, have you found anything?" Cheng Yu beckoned to Huo Yu.

Huo Yu jumped in front of Cheng Yu, chirped twice, and clicked a few times on the wall with his sharp beak!

"Are you saying there's a problem inside this wall?" Cheng Yu said with a frown.

Huefeather nodded.

"Senior Brother Yu, since Huo Yu is so sure, why don't we blast this wall open and take a look!"

"Well, I'll try!" Cheng Yu nodded, walked to the middle of the hall, and asked everyone to retreat to Yongdaokou.

Cheng Yu closed his eyes slightly, his feet began to slowly leave the ground, and the whole person floated in the center of the hall, his hands quickly changing the magic seal.

Roar! Cheng Yu pushed with both hands, and two dragon shadows flew out and slammed into the wall.

Boom! The explosion made the whole hall seem to shake.

"This hall won't collapse!" Xinluo said with some concern as he felt the ground tremble.

"Don't worry! This wall is much stronger than you think, just look at it. Xinyun pointed to the wall that Cheng Yu bombarded and said.

It turned out that under such a strong bombardment by Cheng Yu just now, there was no sign of damage to the wall, which shows how strong the wall is.

Cheng Yu shook his head and was also a little disappointed, and the magic seal in his hands changed again. However, this time, the momentum exuded by Cheng Yu was obviously much stronger.

Whoa, whoa, whoa, six dragon shadows!

"What? Six dragons! Senior Brother Yu is not crazy, if this bombards down, it will definitely collapse, we must prepare to evacuate!" Seeing Cheng Yu's six dragons, Xinhai was startled.

Although the two dragons were indeed fine just now, the power of the six dragons did not mean that the two dragons were superimposed three times, which was much more powerful. Not to mention a wall, it's easy for the entire corridor to collapse.

"Don't speak!" Xinhe shouted, his heart was also a little nervous, not knowing if this cave could withstand Qi Cheng Yu's blow.

Boom, boom, boom! The continuous explosions gushed out one after another true air currents, and Xinhe Shi Ji and the others hurriedly protected several of Cheng Yu's women.

The entire hall was shrouded in dust and smoke, and it was impossible to see clearly, but everyone's hearts finally relaxed.

"It's okay, it's okay! This cave is really sturdy enough!" said Kokomi patting his chest.

"How's it going?" everyone looked nervously at the wall of the hall, and even Cheng Yu stared at the wall.

After a while, all the dust and smoke dissipated, and everyone was dumbfounded.

"No, it didn't blow up the wall, it's too strong, isn't it?" Seeing that the wall didn't seem to be damaged at all, still standing there quietly, Xinluo exclaimed.

"It seems that there is something strange about this place!" Although this wall was not blown down, Cheng Yu was relieved, because this just showed that Huo Yu was not wrong, and there really seemed to be something in it.

"I'm a good girl, if I can take this wall out and make it into a shield, then the defense will definitely be amazing!" Kokomi walked to the corner of the wall, touched the wall that had been bombed twice, and found that there was not even a trace, and he was really amazed, and wanted to take it out.

"Do you dare to think that this wall can't even be bombed, how can you take it out?" Xinhe said angrily.

I have to say that Xinluo's idea is good, such a strong defense is indeed a good defensive magic weapon. At least in front of Cheng Yu's six dragon shadows, even if he was distracted in the later stage, he didn't dare to stand and make a hard connection, if there was such a defensive magic weapon, wouldn't it mean that Cheng Yu's attack could be ignored?

"Senior Brother Yu, I think this cave has a good endurance, why don't we attack together!" Xinhe said to Cheng Yu.

"It's useless, if my guess is correct, this cave has been protected by the formation, and with our strength, we can't storm it. Cheng Yu shook his head, and suddenly remembered Jin Toad's words before, there is a human formation in it.

"What should I do if the formation has been protected?"

If there is really a formation here, either their strength is stronger than this formation and they forcibly break it, but in that case, the formation will be destroyed and the cave will collapse.

But if you don't attack, you can only find a formation to break it. However, although these people know some formations, they are not good at cracking formations. And the most important thing now is to find the formation, otherwise you can't break it if you want to.

"Jin Toad, can you find out where this formation is?" Cheng Yu asked Jin Toad with his mind.

"I can only feel that there is a formation in this cave, as for where it is, then I don't know. Jin Toad shook his head and said.

But at this time, the fire feather screamed again. I saw Fire Feather tap the wall with his sharp beak

"Huo Yu, do you know where the formation is?" Cheng Yu asked strangely, he never knew that Huo Yu understood the formation.

Huo Yu seemed to be very anxious that Cheng Yu didn't understand what it meant, and knocked on the wall with his mouth again.

"Senior Brother Yu, could it mean that the formation is here?" Xinhe said.

"Huh?" Cheng Yu looked at Huo Yu.

Huo Yu hurriedly nodded in response.

"But there is nothing on this wall except for stone carvings, how can there be a formation?" Cheng Yu said incomprehensibly.

Although he is not a master of formations, he still knows a lot of formations in the Immortal Demon Tower, but formations generally have energy supply and formation points and formation eyes. And there was nothing here except a few reliefs, how could he have thought that the formation was here?

"Could these reliefs be the eyes of the array?" said Xinyunyu thoughtfully, holding her hand along the lines on the relief.

"It seems that there is nothing else besides this possibility?" Cheng Yu said.

No matter how much he didn't know about the formation, he knew that the formation would not be born out of thin air, and there must be a carrier to transmit energy. If these reliefs are formations, then where does its energy come from?

Everyone also didn't know much about the formation, and they didn't even understand Cheng Yu yet, seeing Cheng Yu wandering back and forth in this hall, helpless, everyone also fell silent.

Several of her women knew that they could not help, and there was nothing else they could do but cheer for him in their hearts, and they did not dare to go up and disturb him, and several women watched around the hall.

The walls of this cave are full of reliefs, but the reliefs depict all kinds of strange beasts, which are so beautiful that even those who don't know much about art are fascinated by it.

If you can bring these reliefs back to the world, you can open an art exhibition.

"These lamps are really amazing, they can be burned without oil, and they can't be blown out, if they are brought back to the world, they must be worth a lot of money, right?" Han Xue looked at those stone lamps not only with different shapes, but also without oil, they could always be lit, and they didn't blow out even after blowing, they felt very curious, and they reached out to get them.

But Han Xue grabbed the lamp body and didn't grab the stone lamp, and dragged it a few more times, inadvertently turning the stone lamp ninety degrees.

"Huh?" And at this time, Cheng Yu inadvertently saw the strange shape projection of the turned stone lamp falling on the wall just now, and it happened to coincide with the relief.

This discovery made Cheng Yu have a flash of inspiration, and he was immediately overjoyed, rushed up to pick up Han Xue and turned around a few times, and kissed her on the face: "Han Xue, you are really a genius!"

Then, ignoring everyone's confusion, he walked to another stone lamp and turned it with his hands. Sure enough, the shape of this lamp was different from Han Xue's, but the projection happened to coincide with a part of the relief on the stone wall.

"I see!" Seeing Cheng Yu's actions, everyone immediately reacted and was pleasantly surprised, and quickly turned the other stone lamps one by one

(l~1`x*>+``+