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Mu Tianhe was the first to walk over. He took a look and saw that it was pitch black inside, so he couldn't see anything clearly.

"Let's go down and take a look!" Mu Tianhe said and took out the Night Pearl. He was the first to jump down and the others followed.

It was a narrow passage, with a slight incline, first downward, then flat.

They didn't say a word and followed Mu Tianhe nervously