But Xu Zi didn't speak all the way, she was a little depressed, and she didn't know what she was thinking.

Soon, Grandpa Ji brought everyone to a door with a code and stopped. This door was not quite the same as the rest of the institute, it was pure white metal, cold to the touch.

Yang Yunle touched it lightly with his hand, and reflexively retracted it.

"Don't touch things, just follow me."

Taking the risk to bring everyone in has already broken the rules of the institute, and Grandpa Ji can only remind everyone not to touch things from other places. There are many episodes of these things, and the grandfather hasn't figured out the name, mainly because he is afraid that everyone will be hurt suddenly.

"Uh-huh." These things are naturally understood by everyone.

Artificial black holes really look advanced, and the black projection is like the real black hole in TV.

Although it is a projection, you can feel the real touch when you reach out.

"Can this thing really take us back in time?" Although Yang Yunle has been here for many years, it is the first time he has seen such an advanced thing.

"Sure, I'm not going to waste time, I'll try it first." Grandpa Ji hasn't used it for many years, and this machine was also brought back from the future by someone else.

Everyone watched Grandpa Ji slowly walk towards the projection of the black hole, and at the same time secretly sweated in their hearts.

But Grandpa Ji didn't hesitate at all, so he walked directly into the black hole, and then planned to wave goodbye to everyone.

At the moment when it was close to the black hole, the originally black-gray hole suddenly turned blood-red, which looked terrifying.

Seeing that the situation was wrong, Grandpa Ji planned to go back, but it was too late.

The man-made black hole itself involves passive inhalation, which is only sucked in after a person walks in

The artificial black hole that turns blood-red is active inhalation, it is like being attractive to people, and Grandpa Ji's hand pulls the extension of the black hole, but because Grandpa Ji is too old, and the inhalation power of the black hole is getting stronger and stronger.

In a few seconds, a large number of beads of sweat had oozed from Grandpa Ji's forehead.

Seeing this, Yang Yunle hurriedly ran over to pull Grandpa Ji.

But man-made black hole systems come with their own protection. After activation, in order to avoid inhaling unnecessary things together, an automatic shield was formed around them, and Yang Yunle and Guo Zai couldn't get close at all.

"Grandpa, grandpa."

The three young men could only call out three meters away from the artificial black hole. No one knows what the consequences of being inhaled are.

However, it doesn't look good.

At the moment when Grandpa Ji was about to lose his grip on the edge of the black hole, he gently let go of his tightly clasped fingers, and then glanced at the three young people in despair.

"Grandpa......"

Grandpa Ji finally gave up the struggle because of his physical exhaustion, and he closed his eyes, ready to fall into this unknown red black hole.

But I don't know what force pushed him out, and suddenly pushed him out of the safety line.

He escaped the huge gravitational pull of the artificial black hole and was safe.

"This ......"

Because Yang Yunle is facing the black hole, the perspective is completely different.

The person who just pushed Grandpa Ji out of the black hole is clearly a person. But because it happened so suddenly, no one could see who that person really was.

"Grandpa......" Everyone didn't think too much, they just gathered around and hurriedly comforted the frightened grandfather.

Grandpa Ji patted his chest lightly, his voice trembling, "How can this happen, how can this happen?" ”

"What's wrong?" Yang Yunle looked at Grandpa Ji with a frightened face, and he was a little confused.

"How could a black hole that was supposed to be so good suddenly turn blood red. Such a black hole escapes into multidimensional space, and once it falls, it can never come back. ”

Grandpa Ji gave a simple explanation to everyone. Their research hadn't reached that level yet, and they didn't know why something like this had suddenly started today.

"Multidimensional? Can't come back? Yang Yunle was a little surprised, he had also read such a concept in the book of Jicai, but all things were only theories, and they had never been realized in reality.

"Yes, if it weren't for the force that pushed me just now, I'm afraid you'll never see me."

Grandpa Ji gasped for breath, and suddenly seemed to react again, "Why is there a force that suddenly pushes me out?" ”

Grandpa Ji had his back to the black hole, and he didn't know that it was one person who pushed him.

"Actually...... Actually, it's a person. But it all happened so fast that I didn't have time to pay attention to the person's appearance."

Yang Yunle recalled the scene just now, from the time Grandpa Ji walked into the black hole to the time he was finally pushed out, the whole process did not take more than 2 minutes.

He frowned suddenly, "No, no. It's as if the person touched your waist. He could have pushed you out. ”

Because it happened instantly, it was not easy for Yang Yunle to capture this detail.

Everyone moved their eyes to Grandpa Ji's waist, where there was a close-fitting pocket that seemed to contain a small raised object.

"This ......" Grandpa Ji also reacted, and it was true, he felt as if someone had touched his waist.

He reached into the pocket on his waist, and with trepidation, he felt for the contents of the pocket.

This...... It's a ring.

Yang Yunle remembered clearly, this was the ring of the man in black. It turned out that he said that he couldn't take it off was false, and the truth was that no matter what happened, he didn't forget Ling Xiaocan, he didn't want to take off the ring at all.

"What is this? Like a ring? Grandpa Ji looked at Yang Yunle in a daze and asked, something familiar.

"It's a ring, it's my future carry." Yang Yunle couldn't understand how he appeared in that red black hole in the future, and he also saved Grandpa Ji.

"The future you? Won't he come back? Grandpa Ji suddenly had a worried face, and his expression was extremely serious.

"If he can't come back, then how did he end up in a black hole?" Yang Yunle really doesn't know as much about things in this field as he does with his grandfather, and he hates less when he uses books.

"He may have crossed over, but just happened to land there." Grandpa Ji paused and said, "If he falls there, he can completely escape the gravitational pull of the black hole with the power of the crossing, but it is to save me......"

Grandpa Ji suddenly lowered his head, like a child who made a mistake.

"Is that the future me equivalent to dead?" Although Yang Yunle is alive and well now, it is still very uncomfortable to learn that he has been executed for betrayal in the future.