"Why are you here?" Tong Yan walked out from behind a huge bookshelf with a book in his hand.

"Sister Yan? Are you okay? Su Hui looked at Tong Yan's clothes intact, and it didn't look like there had been a battle.

"What can I do?" Tong Yan looked confused.

"But what's going on on the ground?" Su Hui asked.

"This is my habit of reading books, usually after reading a book, I will throw it on the ground, and then we will tidy it up together." Tong Yan replied, without a trace of waves on his face.

"And such a strange habit?" Su Hui's face showed suspicion.

"Sister Yan herself is a weirdo, a little strange habit, it couldn't be more normal." Qin Hao's voice came from not far away, from behind another bookshelf, "Sister Hui, why did you come here suddenly?" Is there something wrong with the family? ”

"It's okay, it's just that you haven't come home all the time, and I want to come and see you." Su Hui hurriedly explained.

"Then since you're here, why don't you help me check the information here." Tong Yan said, and handed the two thick books to Su Hui and Yu Xiaoyu.

The two of them each opened the book in their hands, looked at it twice just now, and found that it was full of dense formulas, and their heads suddenly became big.

"Forget Sister Yan, let Master help you, we won't bother!" Yu Xiaoyu put down the book in her hand, pulled Su Hui, and left directly through an instant.

Tong Yan looked at their backs, and a smile appeared on the corner of his mouth.

It turned out that this Tong Yan was just a clone.

The real body was still behind the bookshelf at this time, continuing the battle.

"It's good that I'm clever enough to keep a clone, otherwise I would have been discovered." Tong Yan's real body exclaimed.

"If you find out, let them participate together, you can't enjoy it by yourself." Qin Hao teased.

"No way!" Tong Yan said, "This is my personal time, and I can't be disturbed by others." ”

"I usually look at the world, but I didn't expect to be so possessive." Qin Hao said with a smile, ready to start a new round of attack.

"Master!" Suddenly, Yu Xiaoyu reappeared in the library.

"What's the matter, apprentice, what's the matter, come and tell me in front of the teacher." Qin Hao responded.

Tong Yan's clone hurriedly got up to stop it, and asked, "Is the bracelet already charged?" ”

"Well, I was about to say that. The energy stored in the bracelet is enough to open twenty space-time portals. Yu Xiaoyu said, "When you finish reading the book, go back early and take us to do experiments." ”

"Apprentice, then you hurry over and help me find the book, and after we find it, we can finish it and go back early." Qin Hao's voice sounded again.

Tong Yan's clone took the lead in handing Yu Xiaoyu a thick book: "Don't bother with him, Xiaoyu, let him do his work by himself, you can help me find some information first." ”

"Forget it, Sister Yan, you should do it yourself." After Yu Xiaoyu finished speaking, he left directly through teleportation.

"Sister Yan, your current psychological quality is okay, your face is not red and your heart is not beating." Qin Hao said.

"Learn from whomever you want." Tong Yan snorted coldly, "Let's end it early, I want to see the effect of time travel." ”

"Well, then let's finish it and go back early." Qin Hao turned over and launched the final general attack.

After making sure that Tong Yan was exhausted and unable to continue fighting, Qin Hao Mingjin withdrew his troops and returned to the manor with her.

"Let's get started!" Qin Hao said, and picked up the black wooden box and handed it to Yu Xiaoyu, "In the future, put this box in your spatial magic weapon, so that you can charge it at any time." ”

Then he took Zhongmei into the drifting bottle and came to the dilapidated planet where he met Yu Xiaoyu before.

"Does this planet belong to the X Domain?" Tong Yan asked, looking at the ocean under his feet.

"I don't belong." Qin Hao replied.

"That means that Xiaoyu's shuttling ability will not be limited by any time and space." Tong Yan said.

"It's basically understandable that way." Qin Hao replied, "However, everything has limitations, and there should be a boundary that is secretly restricted. ”

"Then let's do a few more sets of experiments, through big data for comparative analysis, I am making a curve table, find out the α, β related element points, so that the common points can emerge." Tong Yan said.

"After that, if you use the deductive method, you should be able to figure out how to use the bracelet." Qin Hao said.

The two chatted α for a while, and after a while, they β a whole day, and they directly confused Yu Xiaoyu and others.

"What do they say again?" Su Hui asked.

"I don't understand, but I feel like it's amazing." Mo Wanhuan replied.

"It shows that the two of them have a very good effect of reading books in the library." Yu Xiaoyu said.

"Otherwise, let's go to the library to recharge, and now we can't keep up with Yan Yan's rhythm." Scarlett said.

"Forget it, I usually choke on watching some chicken soup." Peacock said, "I'd better continue to study beauty knowledge and rely on my appearance to eat." ”

“……”

Listening to everyone's chatter, Tong Yan smiled slightly, hiding his merit and fame.

Then, Yu Xiaoyu began to manipulate the first step, just travel through time and space, and soon exhausted these twenty opportunities.

Among them, one is an abandoned planet, and most of them are planets with humans and inhumans.

Qin Hao conducted an investigation and analysis of each planet.

The location and size of the planet, the number of inhabitants, the level of energy, the local stockpiles and the state of development were recorded.

Subsequently, he and Tong Yan further sorted out and analyzed these data.

Although Yu Xiaoyu and the others couldn't help, they gathered around the two of them like curious babies, watching them make tables and analyze data there.

"I've found a pattern." Qin Hao took the lead and said, "The planets we went to, without exception, were all of low level. The energy value of the Inhumans on each planet is generally low, which also means that it is unlikely that there will be a local powerhouse. ”

"Indeed." Tong Yan nodded slightly, "The geographical location, size, resources, and number of people on these planets are all different, only the local Inhuman energy level is similar. ”

"I see!" Qin Hao analyzed, "Xiao Yu's bracelet, in essence, is the same as the function of a drifting bottle, it is an absolute defense artifact, and one of the important roles is to ensure the safety of the owner.

Therefore, this bracelet should have an energy detection function, which can predict the energy level of the aliens in the surrounding planets in advance, and actively choose those relatively safe planets to cross.

To put it simply, if there is a strong person on a planet whose energy value exceeds Xiaoyu, then this planet will be automatically excluded by the bracelet, and we will not be able to travel through the past. ”