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"Eh? "It still can't break through this defense?" Ling Feng's expression slightly changed. When his full strength could not even deal a single blow against the transparent wall, he appeared to be somewhat dispirited, as if he did not know what to do.

At this critical moment, Ling Feng placed his hope on the Nine Nether Soul Devouring Tablet, attempting to break through the defense by relying on its corrosion. However, when the dark black corrosive energy made contact with the transparent wall of light, it was still blocked outside, unable to break through the powerful defensive light barrier in the slightest.

"Huhu, what exactly is this thing? Why is it that not even the Nine Hell sect's Soul Devouring Tablet can do anything to him?" After trying all sorts of methods, Ling Feng was still unable to do anything to the transparent barrier of light.

"Eldest, this thing cannot be broken through by force." Suddenly, when Ling Feng seemed to be at a loss as to what to do, an extremely familiar voice sounded in his mind.

When he heard this familiar voice, Ling Feng's face revealed an excited smile, and the aura throughout his body also continuously fluctuated.

"Tong Tian Demon Dragon, you're awake! That's great! How is it? How is your soul? " It was not difficult to tell from his voice that the Heavenly Demon Dragon's soul had suffered a major blow, so Ling Feng asked worriedly.

"Eldest, don't worry, I won't die. I just exhausted all my energy in the previous battles. With a calm and steady voice, the Heavenly Demon Dragon spoke calmly.

"Un, it's good that you're fine. Oh right, you said that this thing wasn't forcefully broken through. Do you have any ideas?" Or do you know how to break it? " Ling Feng stared at the Tong Tian Demon Dragon with a puzzled look as he asked.

"I can't say anything about this, but I feel that you can't break through it with your toughness. Eldest, why don't you study it on these gigantic coffins? Maybe the secret is hidden inside, and furthermore, why would they get so many coffins here? " To put it bluntly, the Heavenly Demon Dragon spoke its mind.

Ling Feng's expression turned cold. When he heard the Tong Tian Demon Dragon's words, he instantly felt as if he had seen the light of day. After fiercely patting his forehead, he said with a face full of excitement:

"That's right, it seems that I was too eager for quick results, my eyes were locked on to the blood-colored bead all along, the Heavenly Demon Dragon, you should rest for a bit, I will carefully study it!" As if he had found his target, Ling Feng's clear voice revealed his joy.

and Xiao Jiu had already waited outside for a few days. No matter what, he had to go out and report that he was safe, and let them know that he was still safe.

Outside the Eight Trigrams Formation, when Ao Ningxue and the enlightened Mythical Beast Xiao Jiu saw that Ling Feng had walked out safely, they were overjoyed, as if they could not control their excitement.

"Ling Feng, did you encounter any danger inside?" With both hands hugging Ling Feng's arm, Ao Ningxue asked in a clear voice, obviously a little curious.

, I saw a blood colored bead inside, it should be extraordinary. However, I am unable to break through the defenses of the blood-colored bead, so for the next period of time, I will probably need to study it thoroughly inside. I just need to come out now to tell all of you that there is no need to worry about me! "Su Yun said in a low voice. To be frank, Ling Feng revealed his next plan.

"Hmm, how long will it take?" Although Ling Feng said that there were no dangers, Ao Ningxue still asked carefully. She hoped that Ling Feng had always been in his line of sight, that's why she felt that it was safe.

I don't know about that. At least a few days, and a few more months. But don't worry, I will definitely come out before the Devil Extinguishing Assembly begins. Also, the Heavenly Demon Dragon has already awakened. With him by my side, I believe you should be relieved!" Smiling happily, Ling Feng said with a gratified expression.

"What?" The Heavenly Demon Dragon has awoken? " When she heard Ling Feng's words, Ao Ningxue seemed to be unable to control her emotions and said quickly. Indeed, she knew the strength of the Heavenly Demon Dragon, so she didn't need to worry at all with the Heavenly Demon Dragon by Ling Feng's side.

"Sister-in-law, don't worry. Eldest won't be in any danger. If it's real danger, I'll come out too!" The Heavenly Demon Dragon of the Heaven's Falling Seal directly shouted, allowing him to completely relax.

"Mm, I can relax now that you've woken up. This way, there'll be a better way for you to take care of each other!"

"Alright, Xiao Jiu, you stay here and protect Xue Er, don't run around. Take this chance to cultivate properly, because if you go out again, the world will be turned upside down!" For some reason, Ling Feng had a feeling that the outside world was about to become chaotic. Beside the endless gigantic coffins, Ling Feng finally found some clues after researching for ten whole days. Right now, his face was filled with excitement, and shockingly, he was surprised to find out.

"How is Eldest? Did you find some clues? " The Heavenly Demon Dragon from the Heaven's Falling Seal could not help but ask curiously when it felt Ling Feng's emotional fluctuations.

"The Heartless Celestial Step, these hundred or so coffins not only follow the formation pattern of the Eight Trigrams Formation, they also contain the Heartless Celestial Step!" To be frank, Ling Feng said clearly.