The truth behind this?

After understanding the situation clearly, QiuQiu brought Lu Ming and rushed into a metal mine vein. Then, they swam along the metal mine vein.

QiuQiu's brain contained the information on the formation to pass through the metal mine vein, so it went very smoothly. They passed through one metal mine vein after another, and when they passed through the last metal mine vein, they suddenly appeared in an open space.

This was a vast underground structure, a space that had been forcibly opened up underground.

They appeared in front of a huge metal door. The metal door was open.

There were two statues in front of the gate.

The two statues were both made of metal. They were black, and he didn't know what metal it was.

"What a familiar feeling. I've definitely been here before."

QiuQiu muttered and strode forward.

"This is ..."

Lu Ming saw two piles of black dust at the entrance.