The road up was very long, and as Xia Lu had deduced before, the city was already deep underground, and as long as the passage was closed, people would have to dig down for a long time to reach it.

Even with today's technology, it would take three to five days.

And Xia Lu's other conjecture is also correct, the city is built on top of the dead city.

At the end of the passage is the underground waterway of the dead city.

The foul-smelling underground sewers give people a feeling of suffocation at all times

"Rebirth in the Last Days: Hoarding a Billion Materials at the Beginning" Chapter 829 Advanced Individuals are in the middle of the fight, please wait a moment,

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