He put away his laughter and added silently: "You really don't have a sense of humor. As people who have experienced it, keeping an optimistic mood is a good way to increase your survival rate."

"Captain Yang, it's not a time to joke now, but I'm used to your jokes, so don't feel embarrassed." Wang Qiang walked to the door and rubbed the rough cement wall with his hands. "This wall is very strange."

"The explosion just now is very powerful. The iron door was blown away, but the wall is intact... Look, the door shaft is still embedded in the wall, and only the door panel is blown away." Sun Lanxin said, pointing to the twisted and deformed door shaft.

"Everyone takes a few steps back and I'll detonate it again."

Everyone retreated obediently, and in the second explosion caused by Wang Qiang, the walls were still intact.

"The explosion just now could definitely blow through a 10-centimeter-thick iron plate. This is just a concrete wall, but it didn't matter at all." Wang Qiang said.

Yang Yangyang took a deep breath and nodded: "It's awesome! Wang Qiang, try it elsewhere. In addition, Su Ming, you can call your female butler back."

"I've called her, she hasn't come back." Su Ming said with a serious expression.

Everyone was stunned and turned to look at Su Ming.

"What does it mean if you haven't come back?"

"She is dead." Su Ming said.

The atmosphere in the feed room became solemn in an instant. Isabella did not come back, which means that not every black door can pass through safely. Some can go to another space, while others die directly.

The situation suddenly became extremely serious. Without knowing whether the black door was safe, no one dared to rashly enter any black door.

"Can your female housekeeper survive?" Wang Qiang asked.

"In 24 hours." Su Ming replied.

When Wang Qiang heard that Isabella could still be resurrected, he breathed a sigh of relief, not knowing whether he should be happy or sad.

It is indeed a pleasure for Isabella to be resurrected, because it means that they can continue to let Isabella help explore the way in the future.

But if Isabella dies again, she will have to wait twenty-four hours to be resurrected, which will greatly delay their progress in exploring the alien space.

"Tsk! In other words, we have to wait another twenty-four hours before we can perform the next test." Yang Yangyang frowned, "It's really unpleasant!"

"It doesn't matter, we have time, and it's better to be cautious in everything." Sun Lanxin said.

"Oh! I have an idea!" Yang Yangyang suddenly shouted.

He quickly walked to the Black Door at the entrance, lay on the ground, and then reached into the Black Door.

"I...I've touched the cold floor now. The floor is smooth and a little sticky. I don't know if it's blood or other mucus." Yang Yangyang said.

He pulled his hand back, and his arm was naturally broken, but his expression seemed nothing and did not take the broken arm seriously.

Su Ming asked Xia Xiaoyu: "Doesn't you feel pain if you reborn?"

"Yes, but pain is a strong red flag to the brain by the human body. When people are constantly injured frequently and their own functions are not affected, the brain will finally adjust the acceptance and transmission of pain... In other words, it is a habit."

"Doesn't the broken arm grow again consume energy?"

"Depending on the situation, the level, the regeneration people below level B and B need to consume energy when regenerating their bodies, but level A seems to only consume a very small part of the energy, and they can even avoid eating for a long time."

“…This does not conform to energy conservation.”

"Energy Conservation? Why is energy not conserved?

Ah, I almost forgot that you haven’t learned the concept of high-dimensionality!

Most of the energy of superpowers is taken from high-dimensional space, so energy has always been conserved, but with our current science, it is impossible to observe high-dimensional energy."

"Since you can't observe it, how do you know that the energy consumed by superpowers comes from high-dimensional space?"

"Because the high-dimensional space does exist, someone has confirmed this. Although the specific verification process has not been announced, it is absolutely confidential." Xia Xiaoyu said, "If I were not in Dongyang Island, I could go to the alliance to steal the information for you to check it out, which is a pity."

Su Ming touched his chin and thoughtful.

This is the second time he has heard the word Gaowei. The first time he heard it was the demon mentioned by Silvi. The demon seems to be a high-dimensional creature, but looking at their surface, it seems that there is no difference from three-dimensional creatures.

Is this because the high-dimensional part of them cannot be observed by humans?

Yang Yangyang climbed up from the ground and said as if nothing had happened: "It shouldn't be a death immediately when we pass through it. After all, the opposite side is also a space, at least there is ground and liquid, but the danger is definitely dangerous. Otherwise, the butler named Isabella would not have been able to not hold on for even a minute.

The last time Su Ming ordered the butler to escape immediately when he encountered danger, so the butler could only fail to react when he was attacked, or he had no time to escape and died directly.

So... it's quite dangerous behind this black gate. I really want to know what's the danger behind this."

Yang Yangyang looked at the Black Gate curiously, his expression much more serious than before.

Finally, everyone decided not to take action within 24 hours, check the teaching building again, and then found a place that was easy to defend and difficult to attack to station and wait for a day.

They cleared a classroom and then ate a simple meal in the classroom. What's interesting during this period is that, as the regeneration person with the least demand for food, Yang Yangyang actually opened three canned foods that were not flavored and ate them all.

"Although it's not as good as what you usually eat, it's quite fresh when you eat it occasionally!" Yang Yangyang smiled, "But it turns out that I still want to eat better... By the way! Su Ming, can you ask the butler to bring some delicious cooked food next time?"

"Yes, Isabella can process food in her own space and ask people outside to help prepare the ingredients." Su Ming replied.

"Damn it, it's awesome! I also want to have such a weird butler! This is too convenient!" Yang Yangyang said.

Sun Lanxin yawned.

Wang Qiang next to him said with concern: "Are you sleepy?"

Sun Lanxin: "Something."

Wang Qiang: "Captain Yang, let's take turns to watch. It's 1:00 a.m. We take turns in groups of two, each group of three hours. How about it?"

"That's it. You and Sun Lanxin's superpowers cooperate. You two are in groups. I'm not sleepy yet. You go to bed first." Yang Yangyang said, turning to look at Su Ming, "Su Ming, are you sleepy?"

"I'm not sleepy." Su Ming said lightly.

After saying that, he turned to Xia Xiaoyu and said, "You go to bed."

"I'll watch with you." Xia Xiaoyu replied.

"Idiot, we have to sleep time staggered. What if I fall asleep with you and get attacked in my sleep? I can still have someone to protect, but I can only protect you, so we both have to sleep separately."
Chapter completed!