Although this palace is not as tall as the Holy King's Palace, it is also fifty or sixty zhang high, the door of the palace is closed, and the two simple and heavy red gates are covered with traces of time.

Liu Chen stepped forward and tried to push the door in, but found that his strength was not enough to push it open.

Then Liu Chen took out the Jin Gang sword and urged the sword technique, with his current sword power, even if he killed an Emperor Realm martial artist, there was no problem, but such a terrifying attack had no effect on this gate, and not even a sword mark appeared on it.

This made Liu Chen very surprised, he didn't know what kind of material was used for this door, and it could be so strong.

Liu Chen took a closer look and suddenly noticed that there was an imprint of a six-pointed star on the door.

"Is it a mechanism?"

Perhaps you need to find a six-pointed star as a key to place here to open the door.

Liu Chen could only return the same way, and the way back was equally dangerous, triggering the mechanism one after another, and attacking him one after another, but under Liu Chen's eyes, all these attacks were dodged.

There was no danger along the way, and I left the first passage smoothly.

Liu Chen returned to the Holy King Palace, and at this moment, no one in the Holy King Hall could be seen, and they had already entered the various passages.

Liu Chen directly entered the second passage, and as before, he also saw a lot of corpses in the passage, and there were also mechanisms here.

It took half a cup of tea for Liu Chen to come to the end of the passage, and there were more than a dozen warriors in front of him, all of them looking at the orange gate in front of him.

On the door plaque is written the three big characters of 'Fire King Palace'.

Liu Chen still remembered that at the end of the first passage was the Sword King Palace, and at this moment he saw another Fire King Palace.

What surprised Liu Chen the most was that on the orange gate of the Fire King Palace, there was also an imprint of a six-pointed star.

Liu Chen tried to urge the attack to open the door, but the result was the same as before, and he couldn't open it at all.

Liu Chen guessed that the situation of the other channels was also like this?

If that is the case, then where are they going to find the key? It seems that only in the Temple of the Holy Kings can be found.

Liu Chen immediately returned, and this time when he returned, there were more people in the Holy King's Palace, some came out of the passage, and some were outsiders.

The Holy King's Hall was empty, and there was no place to put things, and Liu Chen couldn't help but wonder if the key didn't exist?

If the key is not in the Temple of the Holy King, will it be in the passage?

Liu Chen found that he seemed to have neglected this important place, and when he entered the passage before, his mind had always been on the mechanism, always vigilant against the sudden attack of the mechanism, and he had no intention of paying attention to anything else.

Liu Chen decided to enter the passage again, and entered the first passage, Liu Chen opened his heart and carefully perceived the up and down of the passage, and when he walked nearly half the distance, Liu Chen suddenly made a discovery.

At the top of the passage, a purple six-pointed star was inlaid with a gemstone that was about the size of a mark on a door.

Liu Chen was overjoyed, and sure enough, he was here, so he took it down immediately.

At the moment when he took down the purple six-pointed star, the passage suddenly began to tremble violently, and there was a loud buzzing sound.

Immediately after that, one after another attacks seemed to be crazy, attacking towards Liu Chen.

Fortunately, Liu Chen has been opening his eyes and cooperating with his body to shuttle through those attacks, so dense that he can't leave a trace on Liu Chen's body.

Smoothly came to the end of the passage, looking at the red door, Liu Chen put the purple six-pointed star in his hand into the imprint.

But after waiting for a long time, he didn't see any movement, Liu Chen tried to push the door, but the result was the same as before, the door still couldn't be opened.

"What's going on?" Liu Chen frowned, took out the purple six-pointed star, and looked at it carefully.

"Color?"

Liu Chen suddenly reacted, the door in front of him was red, and the six-pointed star in his hand was purple, which did not match in color.

And the gate of the Fire King's Hall at the end of the second passage is orange.

Liu Chen was guessing whether the seven passages all led to a palace, each door was of a different color, and one of the seven doors should be purple, and the purple six-pointed star in his hand was the key to open the door.

Liu Chen almost immediately had an answer, and returned the same way again, returning to the Holy King's Hall, looking at the seven passages in front of him, Liu Chen didn't know which passage to go to find the purple gate, so he simply waited outside.

Because there were people coming out of each passage, Liu Chen stepped forward to ask.

After some inquiry, Liu Chen was overjoyed, everything was the same as he guessed.

Sure enough, there was a door at the end of each passage, and from the first passage, the colors of those gates were red, orange, yellow, green, blue, and purple.

And there is a six-pointed star on each door.

The purple gate ends at the end of the seventh passage.

Liu Chen resisted the excitement in his heart, his figure flashed, and he entered the seventh passage.

Just like the passages I entered before, there are mechanisms in each passage, and if you are not careful, you may die at that time.

On the floor of the passage, you can see corpses, some of them unrecognizable, blood splattered everywhere, very miserable, as if they were hell.

Liu Chen deliberately looked around the passage to see if he could get other six-pointed stars, but he couldn't see them until the end.

At the end of the passage, there were three or five people standing, and in front of them was a majestic purple palace, and a purple gate was particularly obvious, with the mark of a six-pointed star on it.

Above the purple gate hangs a plaque with the words 'Thunder King Palace' written on it.

Liu Chen still remembered that the palace at the end of the first passage was the Sword King Palace, and at the end of the second passage was the Fire King Palace, but he didn't expect that there was another Thunder King Hall now.

Liu Chen felt that these names should convey some information, and he didn't know what was in this Thunder King Palace.

Liu Chen walked over and saw Liu Chen coming, those people hurriedly got out of the way, and looked at Liu Chen with fearful eyes.

In the battlefield outside the realm, the name of the Soul Slaying King has already become famous, and everyone knows it, especially these martial artists of the Saint King Realm, who are even more familiar with Liu Chen's name, and no one dares to provoke Liu Chen.

Liu Chen took out a purple six-pointed star and put it in the six-pointed star mark on the door.

Buzz!

The purple gate suddenly buzzed, followed by a sound of noise as it slowly opened.

The few people behind Liu Chen looked at Liu Chen with admiration one by one, they had tried the door that could not be opened by various methods, and it was opened so easily by Liu Chen.

The purple gate opened, and a violent thunder and lightning power filled the palace, Liu Chen was happy in his heart, this seemed to be a good place to cultivate, just enough to be used to comprehend the way of thunder and lightning.

Thunder roared, and purple electric snakes danced.

For others, it is like purgatory, but for Liu Chen, it is a rare place to cultivate, Liu Chen is proficient in the way of thunder and lightning, and there is no danger at all at this moment.