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In the valley ahead, chains stretched into the sky, the other ends attached to black spheres.
From a distance, they looked like black hydrogen balloons floating in the air—if not for the chains holding them down, those balloons might have flown up into the sky.
But those chains themselves appeared to be metallic, and those black spheres, over a meter in diameter, seemed to be made of black rock, not resembling hydrogen balloons at all. How could they possibly float midair, keeping the metal chains taut?
The group of people all had complex expressions on their faces. Wei Shoucheng said, "Strange, how could there be metal chains in such a place? Could there really be intelligent life here?"
"I wouldn't be surprised by anything in this place," Wei Shouxin said with a wry smile.
Within the area of those chains and black spheres, Lin Shen and his companions saw the beetles they had observed earlier pushing marbles away.