Ah, "Is it a one-time thing? This is a bit of a pitfall." Xu Yi didn't expect that this could only be used once.

He naturally knew that the power of mind could not be absorbed.

It is a surprise to be able to use it like this.

"It's good to have one-time use, at least it can give us a way to deal with ferocious beasts. Xu Yi, your contribution is too great and worth remembering by all of us." A challenger said excitedly, originally he planned to give up and leave.

"Although it's difficult to obtain some, you can still get it. Wasteland, yes, we can go to the wasteland to hunt those ferocious beasts. They have this brain crystal, right?" Another challenger had a sudden inspiration and hit the ferocious beasts in the wasteland.

"By the way, did the murderer have brain crystals just now? Who has seen it? Where is it?" A challenger asked curiously, and he thought that plants were relatively easier to obtain.

"Here, here is this thing." As he said that, someone raised his hand.

The brain crystal is not big, it looks like the size of a 50 cents coin.

"When using it, just inject your mind power into it. If it is not used, the mind power inside should be maintained for a relatively long time." Xu Yi explained.

"This brain crystal can become our currency. After all, everyone always needs to trade. Compared to other things, we need this brain crystal. Judging from the situation just now, a brain crystal should be able to kill several ferocious beasts, right?" Jerry said excitedly. He had been thinking about how to establish a currency system so that he could trade with other challengers.

This brain crystal is a completely natural currency!

After all, everyone needs to use it.

"Yes, it can indeed be used as currency. Compared with other things, this brain crystal is more valuable. We can also use it to study weapons, such as an energy gun like a lightning gun, and develop a mind-power gun." Qin Fan also agreed very much. If Jerry hadn't said it quickly, he would have suggested that everyone treat this brain crystal as currency.

No one said anything about the person who took away the brain crystal of the murderer.

After all, at the beginning, no one knew that there was a brain crystal, nor did they know what it did.

"Xu Yi, I want to ask. Do we humans have brain crystals?" A challenger asked curiously. After all, even plants have brain crystals, will humans have it?

"It shouldn't be there, at least I don't have it in my brain." Xu Yi really couldn't make sure, maybe it would grow over time.

"Okay, now everyone can continue to look for water sources." As he said that, Xu Yi clapped his hands and then returned to his own team.

Knowing the existence and function of brain crystals, everyone has indeed rekindled hope.

At this time, in the elimination camp, more than a dozen eliminations gathered together and regretted giving up.

"Have Xu Yi discovered this brain crystal long ago, or have you just discovered it?" An eliminator said with some distress. He felt that if Xu Yi had announced the news earlier, he would not have given up.

At that time, although he was bitten by a ferocious beast, it was not fatal. He should be able to recover after a few days of recovery. After giving up, it will take at least one month to recover when he comes back.

So he regretted even more that he gave up. If he were still on Linglanxing, he would have been running around long ago. He would not have to sit in this wheelchair like he is now, and he would not be able to stand up.

"It should have been just discovered. He just woke up his mental power. It was not easy to find this important news." Another eliminator said.

"I really hope that the time has passed earlier. By the 200th day, we can return. When we come back, even our mind power has disappeared, and it is uncomfortable." The person who spoke was what he gave up yesterday and had already stimulated his mind power. But after he came back, he found that his mind power had disappeared.

"I will regret it for a moment if I don't give up, but I will regret it for a lifetime." Another person who gave up yesterday said, with regret on his face.

"We should consider what we should bring back. Since the brain crystal has become a currency, we can exchange materials for currency."

The emergence of brain crystals not only affected the challengers of Linglan Star, but also affected the eliminations, and affected the alliances of various countries.

Natural currency is still very different from issuing currency. They also customize some plans to deal with the emergence of brain crystals.

However, these things have nothing to do with Xu Yi and the others.

The most important thing they are to find water sources and find places suitable for building camps.

"Xu Yi, is there any difference between brain crystals? " Su Yan walked to Xu Yi's side and asked curiously.

In the past, she felt that she had watched Xu Yi's live broadcast for so long, so she probably knew him very well.

However, now I find that my confidence is ridiculous.

Xu Yi said a few days ago that he woke up his mental power less than 50 days after entering the live broadcast. However, even the organizer just discovered it.

She had no idea about Xu Yi at all.

What she knew was just some of the situations that Xu Yi showed. No one would know about him hiding it.

However, she wanted to know.

"I don't know, I've seen not many brain crystals. But I feel that there should be differences." Xu Yi only has mental power, but not a perspective eye that can see through everything.

"Then can we get brain crystals in the future, so can I study them?" Su Yan continued to ask. She was also very curious about brain crystals. She felt that if she could unlock its secrets, she might be able to quickly enhance human mind power.

Using brain crystals always uses external forces. If you want to truly become stronger, you still have to make your strength stronger.

"Of course." Xu Yi smiled slightly. This is a good thing. Su Yan is a doctor after all, and she is from the brain department. Maybe there will be something special about this.

If you want to make everyone progress, it is not possible to rely on him alone.

"Water, I heard the sound of water." A challenger shouted excitedly, then ran over quickly.

Behind him, there were many challengers following him.

Have you really found the water?

Xu Yi was a little confused and also accelerated the speed with others.

However, he soon heard the screams.

It was not a sound of water at all, but a sound from a ferocious beast, which made him mistakenly think it was a sound of water.

Moreover, there are not one or two, there are 6 ferocious beasts in total.

One of the challengers' arm was bitten off and was running for life.

The others rushed up quickly.

"Brain crystal, who has brain crystal, hurry up and take action." Someone shouted in the crowd.
Chapter completed!