Ling Ruo glanced at the black triangular door, stretched out her hand and stroked it, the special characters on it flowed, it was not any of the 241 kinds of galactic civilizations she mastered, even the symbol was very unfamiliar.

"This technology, I seem to have a little impression, the four-dimensional technology built on the three-dimensional world should not be something that a second-level civilization can master...... Sunset, what have you done? ”

Civilization and civilization, if you want to cross the hierarchy, it is not something that can be achieved by one or two technologies, it must be a complete set of matching technical matrices and scientific system theories, as well as the various creations that support these.

The first-level civilization is marked by the use of nuclear energy and has the basic interstellar space capability, the second-level civilization is the further use of nuclear energy, as well as the large-scale construction of starfleets, and has the ability to carry out interstellar jumps, and the third civilization is based on the first-level civilization and the second-level civilization, like the branches of a big tree, which will develop into a hundred flowers blooming, but there are also signs, that is, the exploration and study of the four-dimensional space, as well as the in-depth understanding of the spiritual soul.

What can be seen so far......

Ling Ruo had an idea in his mind.

The symbols didn't react to her fumbling, but if Vaca touched them, they would flicker.

Ling Ruo found that when he touched this strange triangular door, the beast pattern on Waka's face would swell up with symbol-like things.

Could it be that—

"Waka, smack your face up."

Ling Ruo stretched out his hand and pointed to the door.

Aha?

Waka didn't quite understand, and slammed his face on the door, what kind of operation is this? He was puzzled, but this honest boy was still obedient, and poked his face on the door.

Ling Ruo grabbed the back of Waka's head, pressed his face against the door, and reflected the green light on the door under his eyes, quickly captured, analyzed, captured the symbols on it and the symbols on Waka's face, corresponded, and then decisively pasted them.

Urn!

The triangular door changed, half of it materialized, and Tashi and Lao Laizi also saw it.

"It's out!"

Tashi said it was completely incomprehensible.

Ling Ruo drew a scoop according to the gourd, and put the face on the other side of the Waka as well, and the triangular door completely appeared, and then it was automatically connected and opened.

The opening of the triangular door is a signal, the black building that has been silent for thousands of years is restarted, and the top of the triangle shoots out light to illuminate the Stare, and those rays of light continue to react in the sky above the black desert of the Sidane, constructing and forming a new triangle, and the triangle reflects a light to connect the building where Ling Ruo is located below, and the black building body changes, they seem to be injected with energy and shine.

On the building, there are various images like projections, and the subjects in these pictures are all the same people as Waka.

The spirits were attacking frantically, but they were quiet at this moment, their faces that had been worn away by time became clearer, and they stared blankly at the images, their gestures reverent, as if in remembrance.

And Waka looked at those pictures, the people on those pictures, and suddenly there was a huge chaotic sadness and loneliness in his heart, and tears flowed down unconsciously.

Why, these buildings are filled with their spirits?

Why, he and his sister are the only people left in this world?

Why did they become like this, why?

He doesn't understand, doesn't understand!

At this moment, the picture suddenly appeared, a middle-aged man wearing a crown from the Sunset Clan, his gaze seemed to be staring at Waka through time.

"Are you back, my child, and if you do, then I tell you, you are the only hope for the Sunset Clan."