They walked into the cave on guard, and it was not as dark as they had imagined.

On the stone walls on both sides of the cave, colorful crystal stones grow, illuminating the cave brilliantly.

"Such a beautiful crystal stone, orange, yellow, green, red, blue, blue, purple, these colors are pure and translucent, not polluted by dust, so beautiful."

Jian Xuenu sighed, read it along the color of the crystal, slowly reached out and stroked it, and pointed to the crystal one by one.

"It's beautiful." Xia Aya also sighed, picked up two scattered crystals from the ground, held them in her hands and admired them, and then handed one to Jian Xuenu: "Sister Xuenu, it's very beautiful, give you one." ”

"You take it, I'll pick it up myself when I come out later." Jian Xuenu didn't look at her and continued to walk forward.

"Brother Bai Chen, I'll give you one." Bai Chen saw her hand the crystal in his hand and caught it.

As they walked on, they had just stepped past the crystal chamber when there was a 'bang' and a door descended from the sky, isolating them from the crystal, and the cavern quickly dimmed.

Jian Xuenu only discovered at this time that the crystal stone in the hands of the two of them could be used for lighting. But she has a spiritual fire, and she doesn't care about that.

"It's miserable, Sister Xuenu, the door is closed, how are we going to get out in a while?" Xia Aya kicked Shimen a few times, but she didn't even respond, she was really a little anxious, Hell Continent, she should be more familiar than Bai Chen and Jian Xuenu, if she didn't get out, they should be even more powerless.

"Don't panic, there must be a road before the car reaches the mountain." Jian Xuenu took advantage of the afterglow of the crystal and walked forward cautiously.

On the stone walls on both sides. Carved with all kinds of hideous beast heads, it looks a little frightened, and makes people have a bad premonition about the future. Inside this cramped cave. Emptiness has no power and cannot be used, and everyone knows in their hearts that fear is slowly growing in everyone's hearts.

It's just that the star pattern outside the door is so weird that they can't help but want to come in and find out. Curiosity can sometimes be really harmful.

After walking for a long time, I saw a blocked stone gate again. It's just that next to the stone door, there is a button plate made of crystals of various colors.

Jian Xuenu looked at the cipher disk. Somewhat dumbfounded, red, orange, yellow, green, blue, blue, purple? Did you mean that the crystal door would be closed just now, and this was a test of their memory ability?

"Who remembers the order of the two rows of crystals just now, orange, yellow, green, what's behind?" Jian Xuenu was confused. Just to appreciate the fine texture of the crystal. If you don't remember the order of the crystals, if you can't remember them, you can only try them one by one by combining them into many orders, otherwise, you will be trapped in it.

"Huh? Sister Xuenu, is there an order for crystals? I didn't remember it, I don't know the order. Xia Aya looked at the many crystal blocks of red, orange, yellow, green, cyan, blue, and purple that kept repeating on the password disk. Confused with his mouth open.

Bai Chen also looked at the crystal plate speechlessly, he was admiring the beauty of the crystal just now. Who pays attention to the order of the colors in which they are arranged?

"No matter, I'll try it, the first three still remember, and the last four colors will be arranged and combined one by one." Jian Xuenu began to press the color palette, and her mouth followed suit: "Orange, yellow, green, cyan, blue, purple, red." ”

After Jian Xue Nu finished pressing, they all looked at the stone gate, and the stone door did not move, "Sister Xue Nu, there is no movement." ”

"I'll come again, orange, yellow, green, blue, purple, blue, red."

"Still no movement." Xia Aya looked at Shimen a little nervously and said.

"It's okay, I'll try again, orange, yellow, green, cyan, red, blue, purple."

There was a 'bang' and there was a movement in the door, but it was not the door they pressed, but the door behind them that they had just come in opened.

"Yes, Sister Xuenu, I didn't expect that you just opened the door to go out with the password just now, we are saved, let's get out quickly."

"Okay, let's retreat to the crystal room first, but I think that the string of codes just now is not the one that opens this door, it should be after I pressed the wrong code three times, and the door behind it will be opened, leaving us a way out and letting us retreat." Jian Xuenu thought about it, it should be more common sense to understand it this way.

Back in the crystal room, they found a strange phenomenon, the two rows of crystal stones with synchronized colors just now had changed, and the colors of the two columns of crystal stones on the left and right were no longer synchronized, and they were not in the previous order, and the order had been disrupted.

I guess I touched these crystals when I pressed the crystal disc inside. The arrangement of these crystals is indeed the same as the cipher disk.

This is difficult for them, this password array obviously increases the difficulty, if before it was just a test of their memory ability, remember the order of the crystal colors, then now, it is not just as simple as memorizing the order of these crystal colors.

"Xia Aya, I remember the color order of the crystals here, and you remember the color order of the crystals over there."

After Xia Aya heard this, she said uncertainly: "Sister Xuenu, we still have to go in, what if we make a mistake after a while and don't open the door to come out?" ”

"No, there will definitely be a way to come out, don't forget that we are all summoners, and we can summon teleportation formations."

"Alright then, I almost fainted." Xia Aya began to remember and remember, remembering, as if she was afraid of making a mistake, she turned back to Bai Chen and said, "Brother Bai Chen, I remember the first few, you help me remember the last few, I'm afraid that if I make a mistake for a while, I won't be able to get in or out, and it will be miserable." ”

"Okay." Bai Chen readily agreed, in fact, he had already begun to remember it in his heart.

As soon as a few of them stepped through the crystal room, the stone door behind them closed with a bang, and the heavy sound of the stone door added to the coercion, and the crystal order that they had just remembered was almost scared back.

Jian Xuenu sent a spiritual fire to make the cave even brighter.

She closed her eyes, and the two columns of crystal stones appeared in her mind. The colors were staggered, and she couldn't figure out where to start.

Maybe the password is not as difficult as she thought, it is one of the columns, "Xia Aya, you go, I say, you press." ”

"Okay." Xia Aya stepped forward and pressed the password disk in the order that Jian Xue Nu had recited, but the door remained unmoved.

Jian Xuenu read another column of crystal color sequences, but the door still didn't move.

Xia Aya was a little anxious, and Jian Xuenu closed her eyes and continued to think.

Her mind returned to the cave door, on the map of the stars on the crystal plate. She remembered the pattern of that Scorpio sign.

Just now she found that directly above the two columns of crystal stones, there is a red crystal stone falling from the sky, that should be the first button, is the scorpion's eyes, if this is the seven-color password array, from the scorpion's eyes, limbs, to the tail of the six buttons, after the six colors are pressed in order, the remaining seventh color is not difficult to filter out.

Sure enough, when Jian Xuenu asked Xia Aya to press the crimson of her eyes, she found that the third crystal in the two columns was yellow to green, and the sixth crystal was blue to blue, both of which were the two closest colors, and in the two columns, the crystal stone at the end was orange. The position of these colors also happens to pose a pattern of a scorpion constellation, with eyes, legs, and tails.

In red, orange, yellow, green, cyan, blue, and purple, six colors have been used, and purple has not been touched.

Sure enough, when Xia Aya pressed the last purple crystal, the stone door that had not moved for thousands of years was like a sigh from a thousand-year-old demon, and it was slowly pulled up with a 'gala'.

"Ah, on, Sister Xuenu, you're so smart." Natsuya jumped up for joy.

"Master, there's a living creature in it." As soon as the little phoenix's crisp voice was finished, a cold air came out of the door, and they unconsciously took a few steps back.

There was no darkness inside as they imagined, the crystal was extremely bright in the reflection of the ice peak, and the entire underground floor was like an underground palace.

And countless pairs of eyes like twinkling stars stared at them without turning around, as if the stone door here had opened, and the creatures inside were stunned.

"Senior brother, is that a specimen or a real living thing?" Jian Xuenu looked at the spacious underground palace, a little uncertain.

Xia Aya stretched out her head from behind Bai Chen, and said, "That's right, Brother Bai Chen, the little phoenix said that they are living creatures, why don't they move?" ”

Bai Chen shrugged his shoulders and said to himself: "I should be scared stupid." ”

Jian Xuenu took out the bow and arrow from the magic space, held it in his hand, increased his sense of security, slowly stepped forward and took two steps, and said: "How pitiful they are to survive in this closed space, I will do a good deed today, let them all out." ”

Jian Xuenu stared at her bow and arrow, the orange icon on it did not shine, she knew that this place was a little far away from the military camp outside the city, judging from the previous distance, it should be ten or so miles.

If this underground palace is really connected to the military camp, it is impossible to think about it if it is connected to the secret door and the demonic beast in Guò ten miles.

If there really is such a passage, and the demons know about it by chance, then wouldn't it be easy to destroy the mercenaries outside the Blood Hell City?

She thought with some trepidation, hoping that this underground palace was not as powerful as she thought.

The three of them slowly stepped forward, stepped through the stone gate, and entered the underground palace. When they got closer, they saw that the bodies under the shining eyes were all scorpions, not all of them were black, but also red, yellow, and green, which should be because of the colored crystals of Jiumu.

The scorpions watched them come in and didn't move, but their eyes were looking at the crystal in Xia Aya and Bai Chen's hands.

Jian Xuenu looked at the crystal in Xia Aya's hand, and had an epiphany, the scorpion has been here for a long time, and has a sense of intimacy with the crystal, but it is a pity that he does not have the crystal in his hand.

When they got closer, they could see clearly that the huge black pillar they saw in the middle of the hall when they first came in was actually a huge tree with a huge root, still growing vividly.

When they were running on the grass on horseback, they had seen huge dead trees, but they did not expect that their underground roots were still alive and showed no signs of death. (To be continued......)