Yu Tianxiao carried Lan Xing'er on his back and flew over the mountains at a not too fast speed, looking for a place where the crystal flint might be hidden. According to common sense, this crystal flint must be placed in those dangerous places, otherwise it will lose its assessment use, and it will not show the level of his treasures, so Yu Tianxiao and Lan Xing'er will pick those strange and dangerous places to look for.

About half an hour later, they came to the top of a high mountain. I saw that this mountain is nearly 10,000 meters high, the whole mountain is like a knife and axe, extremely steep and precipitous, there are all kinds of trees growing on it, or towering or dwarf, the diameter of the mountain peak is also thousands of meters and more than that, what is more peculiar is that many peaks here are connected continuously, but this mountain is completely independent of other peaks, it seems very strange and unpredictable!

After Yu Tianxiao observed it for a long time, he couldn't help but whisper to Lan Xing'er on his back: "This mountain peak looks very strange, there must be something strange in it, maybe there is the crystal flint we are looking for, let's go down and take a look!" ”

"Good!" Lan Xing'er also answered on Yu Tianxiao's back.

Immediately, Yu Tianxiao swished, and flew towards the strange and steep mountain peak under his feet like a streamer with Blue Star on his back.

Soon, a few minutes later, Yu Tianxiao landed on the top of the mountain with Lan Xing'er.

When the two landed on the mountain peak, Lan Xing'er couldn't help but quickly jump off Yu Tianxiao's back. Then Yu Tianxiao said to Lan Xing'er: "Let's look here first, if we can't find it, we will go to the foot of the mountainside to have a look." ”

"Hmm!" Lan Xing'er also nodded.

So the two of them didn't say anything more and began to search for the top of the mountain.

Although when they looked down in mid-air, the whole mountain peak was very steep and rugged, but when they landed on the top of this mountain, they found that the top of the mountain was actually quite flat, and lush, wooded, and relatively large.

The two men began to search carefully through the woods to see if there were any strange places. In this way, time passed minute by minute in the search of the two people, and soon, more than three hours passed, but after searching for more than three hours in a row, they could not find the shadow of the crystal flint.

Since this is the top of the mountain that is 10,000 meters high, there is no Blue Star Beast here at all, and the Blue Star Beast usually lives in those places in the valley where food is abundant, and will never live on the top of this mountain where food is scarce, windy and thin.

When he searched the entire top of the mountain but found nothing, Yu Tianxiao couldn't help but say to Lan Xing'er beside him: "It seems that this mountain top is definitely not a place where crystal flints are hidden, let's go down to the mountainside or the foot of the mountain to find it!" ”

"It would be nice to have a detector, and it might be easier for us to find it." Listening to Yu Tianxiao's words, Lan Xing'er couldn't help but murmur.

"Yes! The fact that such a vast valley martial arts hall did not equip us with a detector is simply asking us to find a needle in a haystack! Yu Tianxiao couldn't help but say with emotion.

As soon as Yu Tianxiao's words fell, suddenly, suddenly, an old and distant voice sounded in the sky: "Crystal flint is an extremely special energy crystal, the detector can't detect it at all, if you want to find the crystal flint, there is only one way, and that is to use your soul to sense." ”

"Feel it with your soul!" Hearing this, Yu Tianxiao and Blue Star were shocked at the same time, in the Blue Star Empire with such advanced technology, there are still things that cannot be detected by the detector, but they need to use their souls to sense to be able to find them, strange! It's so peculiar!

"That's right! Use your soul to sense, although the crystal flint is an energy crystal, but it is also a very spiritual treasure, it is only effective for soulful life, only for soulful life energy, and for those rocks, energy and other soulless life is not effective, so to find it can only rely on your soul to sense, only this plan, there is no other way, okay, you continue to search! Don't use the usual treasure hunt to find it, it may exist anywhere, I wish you can find the crystal flint as soon as possible and successfully pass this third level of the promotion tower! As soon as the words fell, the old and distant voice disappeared immediately.

After listening to the old and distant voice, Yu Tianxiao and Lan Xing'er couldn't help but smile at each other helplessly, they didn't expect that their initial search idea was wrong, no wonder they searched for a long time but found nothing.

After resting on the top of this mountain for a while, Yu Tianxiao couldn't help but say to Lan Xing'er: "Next, we should still use flying to find it, this time we don't need to find those dangerous places, but use our souls to sense while flying, I believe we will definitely find the crystal flint." ”

Although Yu Tianxiao is condensed from that blue liquid, he has all the characteristics of human beings, and he is a relatively special case in the universe, and the same is true for Pipido, so he and Pipido are both living beings with souls.

"I'm afraid you'll get tired if you're always flying like this!" Lan Xing'er couldn't help but say with concern.

"It's okay, we don't have to fly all the time, we fly for a while and walk for a while, and then fly again, so that we won't feel tired when we move forward alternately!" Yu Tianxiao couldn't help but comfort Lan Xing'er.

Although Lan Xing'er and Yu Tianxiao are both in the virtual world, they are both acting with their consciousness, but as their exercise increases, then their brains will also feel tired, if the amount of exercise here is too great, such as fighting with the Blue Star Beast for too long, and they don't know how to rest, then the real body brain in the outside world is likely to collapse consciousness, causing them all to fall into a deep sleep and coma, and may even never wake up again, so no matter how urgent the task is, they must have a proper rest.

"In that case, let's get started now!" Saying that, Lan Xing'er didn't hesitate, and immediately jumped onto Yu Tianxiao's back, and then gently hugged his neck with both arms.

When Lan Xing'er lay down on Yu Tianxiao's back, he saw that Yu Tianxiao didn't hesitate, and immediately took off into the air and flew down the valley with Lan Xing'er.

This time, the two of them no longer deliberately searched for those strange and strange places, but used their souls to perceive the location of the crystal flint as they advanced.

In this way, after about an hour of travel, they suddenly began to feel the cells in their bodies tremble, which was a tremor from the depths of their souls. When they noticed this tremor, they couldn't help but be happy in their hearts, and then Yu Tianxiao couldn't help but say to Lan Xing'er on his back with great joy: "I seem to feel the existence of crystal flint!" ”

"Me too, it seems like it's over there!" As he spoke, Lan Xing'er couldn't help but point to a big mountain in the distance.

"Yes, that's the direction, let's go over and have a look!" Talking about it! Yu Tianxiao first drew an arc in the air, and then flew towards the source of the tremor.

Five minutes later, they landed at the foot of the mountain, and then Lan Xing'er also jumped off Yu Tianxiao's back.

Crash! Crash! Without hesitation, the two of them immediately drew their respective long swords from their backs, because at this moment, the feeling of soul tremor was already very strong, which meant that the crystal flint was not far from them, and the appearance of the treasure also meant that danger was coming, so none of them dared to be careless, don't let the crystal flint stone not get it at that time, but let the blue star beast give a sneak attack, it would be a big joke!

After drawing out the sword, Yu Tianxiao couldn't help but whisper to Lan Xing'er: "That crystal flint seems to be on it!" ”

"Let's climb up cautiously!" Lan Xing'er couldn't help but whisper.

"Good!" Listening to Lan Xing'er's words, Yu Tianxiao nodded heavily.

Then neither of them spoke again, but each carried his sword and walked slowly up the mountain.