"Three-level civilization has emerged. How can that be possible?!"
The members of the six civilization's fleet present were all astounded.
According to expert analysis, this star domain could not possibly give birth to a three-level civilization. This was limited by the cosmic resources.
It was said that the closer to the Milky Way, the richer the resources and the more perfect the cosmic laws. Their star domain was in the third spiral arm, reaching level two was already its limit.
"Unless this three-level civilization is not from our star domain, they may have come from the second or first spiral arm..."
People were shocked, all eyes were cast into the solar system, observing every move of the spaceship belonging to the three-level civilization.
...
"Why?!" Outside the room, a woman stood, mumbling to herself.
She could occasionally hear the sound of a man and a woman coming from inside.