"Search carefully. If there was a civilization in the past, there must be some ruins of a civilization left behind."
Lin Feng began to fly in the air. There was nothing but bare ground everywhere. However, after flying for a while, he saw some ruins below. They seemed to have once been some buildings.
Swoosh.
Lin Feng flew down, and Chen Feng also found some words in these ruins.
"This is the ruins of a civilization. There was once a civilization here!"
It could be confirmed that there was indeed a civilization here in the past.
As Lin Feng continued to investigate, he also discovered more and more ruins.
"Looks like it's the second possibility."
A cold glint flashed across Lin Feng's eyes. If it was the second possibility, that this planet originally had a civilization, but it was slaughtered by the Blue River Empire and became dead. The problem here would be huge.