As soon as he stepped into the area in the middle of the valley, a giant thunderfrog about three zhang in size appeared in front of Lu Chen.

Lu Chen's complexion changed slightly, the thunder frog in front of him was obviously the king of the frog group here, and it was also a top-level existence infinitely close to the ninth-order demon beast, the thunder frog's lantern-sized eyes slowly opened, and a majestic coercion slowly spread from its body.

This thunder frog is comparable to the existence of a mid-stage monk of the human god god, and it is obviously enlightened, it is not in a hurry to attack Lu Chen, but carefully looked at Lu Chen, at the beginning of the Moon Spirit Venerable had an entrustment to it, if one day a human monk who can absorb the power of thunder arrives, then he is the destined person of the secret realm here, and the task given to it by the Moon Spirit Venerable is to let it shoot twice for testing. If the man can pass through, let him go deeper into the valley.

After a few breaths, the thunderfrog's belly bulged, and it spewed out a thunderbolt power comparable to the early stage of the transformation of the god at Lu Chen, but before he could get close to Lu Chen, he was absorbed by Lu Chen's Zixiao gourd.

After brewing for a while, the Thunderfrog launched a second attack, and this time the power of the power of the thunder was significantly increased by one level, reaching the power of the mid-stage cultivation of the gods.

The Zixiao gourd used to be one of the most powerful top-level spiritual weapons in the spirit world, even if it has not been fully recovered now, it is also a top-level magic weapon, and the thunder attack of this mid-stage realm of the god is a piece of cake for it, but after a few breaths, it will suck all the thunder power spewed out by the giant thunder frog into the gourd.

Thunder Frog saw that his two attacks were easily blocked by the human monk in front of him, and there was no look of chagrin on his face, but he was overjoyed in his heart, if this person was really destined for the secret realm, then they would be able to leave here, at the beginning, it and the descendants of the clan were chased and killed by the human monks, and were rescued by the Ning Yue Lingzun, in order to repay the favor, they Thunder Frog clan promised to guard here, they had an agreement with the Ning Yue Lingzun, as long as the treasure was taken away by the destined person, their Thunder Frog clan could be free.

"Human monk, in accordance with my promise to the senior who opened up this secret realm, I have already attacked you twice, and since you passed safely, you can now enter the core area of the valley. Thunder Frog said to Lu Chen.

"Thank you!" Lu Chen clasped his fist at the Thunder Frog.

"If you can get the last chance, I hope you can take me out of this area, and in return, we Thunderfrog can recognize you as the master!" Thunderfrog said again.

Lu Chen nodded and strode into the depths of the valley.

After about 100 zhang, Lu Chen looked up, the dark clouds over the depths of the valley were dense, covering the entire sky, and in this inky thundercloud, there were thunder flashes from time to time, and the rumbling sound was endless.

Feeling that a strange aura had entered, all of a sudden, the endless thunderclouds trembled in unison, and suddenly burst out with a powerful aura, and then thousands of thunderbolts landed at the same time, and the thunderous sound instantly resounded throughout the world.

The monks and thunderfrogs in the valley felt this aura of destruction coming from the depths of the valley, and they all trembled involuntarily.

A surging aura suddenly spread from the body of the Zixiao gourd, and I saw it take the initiative to fly out of Lu Chen's palm, and take the initiative to meet those thunders, and for a while, the thunder flashed here, and above the void, it turned into a sea of thunder.

The Purple Sky Gourd quickly swam between these thunderbolts, and after an hour, all the thunderbolts in the sky above the void disappeared.

At this moment, the thunderclouds rolled like a tide, hanging a purple bead, around this bead, the thunderwave surged, a more terrifying aura of destruction emanated from the purple bead, instantly enveloped the entire valley, due to the limited divine sense, these Yuan Infant monks did not know what terrible changes had occurred in the depths of the valley, but at this time, they and the thunder frog were suppressed by this strong and powerful force, trembling all over, and even many monks could not bear this coercion at the moment, and staggered to the ground.

This purple bead was undoubtedly a high-level thunder treasure, Lu Chen felt that his qi had been locked by this mysterious bead, and a sense of crisis lingered in his heart.

An extremely powerful force erupted from the mysterious purple bead in an instant, and a large number of thunderclouds condensed again, emitting thousands of thunder lights.

The power of this thunder attribute was vast and domineering, and it was extremely domineering, firmly enveloping Lu Chen.

Lu Chen recalled what Ning Yue Lingzun had said to him, this mysterious bead must be the biggest opportunity in the secret realm she said, it was obvious that this was a spiritual treasure, whether it could make it recognize the master depends on its own immortal fate, you can't force it.

Lu Chen guessed that this mysterious bead looked like it was brewing a shocking blow at the moment, but he didn't think that this bead would seal or kill him, but to test himself a second time, and if he could pass the test, he would be able to make him confess his master.

Lu Chen sat down cross-legged and fell into deep thought, the first wave of the mysterious purple bead's attack had been absorbed by the Zixiao gourd, in a sense, he had already passed the first test, and at this moment, if he wanted it to completely recognize the master, he was afraid that he would have to let the Zhenxian Pagoda appear.

Thinking of this, Lu Chen suddenly became enlightened, Zhenxian Pagoda, as the treasure of the Three Realms, will definitely be able to suppress this pearl.

With the attitude of giving it a try, Lu Chen summoned the Zhenxian Pagoda from the sea of knowledge, and the moment the Zhenxian Pagoda appeared, the purple beads suspended above the thundercloud trembled involuntarily, obviously shocked by the breath of the Zhenxian Tower.

An extremely strong suction force suddenly emanated from the Zhenxian Pagoda, helping Lu Chen firmly lock on to the mysterious bead and prevent it from escaping.

At this moment, it was the best time for Lu Chen to collect this pearl, only to see Lu Chen quickly bite the tip of his tongue, and suddenly a stream of essence blood shot out, which exploded violently, turning into a thin net and firmly enveloping the mysterious bead.

The purple bead flew towards Lu Chen at once, and after entering Lu Chen's body, because the thunder power it contained was too huge, Lu Chen's cultivation was limited, and he couldn't withstand such a majestic power, and he fell into a coma all of a sudden.

A year passed in a flash, Lu Chen finally woke up from a coma, at this moment the mysterious bead was lying quietly in Lu Chen's sea of knowledge, this time the abyss of thunder, Lu Chen completely refined the thunder punishment dzi, not only successfully let him recognize the master, but also his own cultivation has broken through two small levels, which can be said to be a great harvest.

After the bead recognized the owner, Lu Chen learned its amazing origin.

Thunder Punishment Dzi, is left when the Ancient Immortal Realm Thunder Punishment Immortal Monarch fell, Thunder Punishment Immortal Monarch was known as the most likely to become the tenth Heavenly Venerable of the Ancient Immortal Realm, although I don't know why it fell, but according to the information left by this bead, who can own this inheritance Dzi means that he has inherited all the thunder supernatural powers of the power of the Thunder Punishment Immortal Monarch, and what shocked Lu Chen even more was that this bead itself was still a Thunder Origin Seed, and when Lu Chen's cultivation reached a certain level, he could slowly begin to master the Origin of Thunder.

Although Lu Chen didn't know what the power of the origin was, he thought that this was the inheritance of the ancient immortal monarch's lifelong cultivation, and it must be a treasure that would make all the monks of the Three Realms blush, but he didn't know why Ning Yue Lingzun would give up such treasures and give them to others.