The portal to the Spiral Abyss looked like an upright curtain of rippling water, and even a light touch sent faint ripples across it.
Li Qiuzhi and the others gently touched the "water curtain," then quickly vanished from where they stood.
It was like blinking. Their vision briefly went black, and when they opened their eyes again, they found themselves in a dark, unfamiliar space.
Above them was an enormous dome, and beneath their feet was a floor laid with stone blocks.
All sorts of structures stood nearby.
Some were tents pitched by adventurers who had come to explore, while others were buildings of various styles that had already existed in this Underground Ancient City.
For the moment, however, they saw no one living nearby. Instead, there were mostly monsters that had come from outside.
Most of these monsters were Hilichurls and Slimes, generally above level thirty or forty.
Only elite adventuring teams with an average level of at least forty or fifty could barely ensure their safety while exploring here.
And this was only the situation on the first floor, where they had just arrived through the portal.
Exploring the second floor required even greater strength, because the monsters capable of reaching it were clearly stronger as well.
The "Spiral Abyss" was actually divided into two parts: the "Abyssal Corridor" and the "Abyssal Moon Spire."
The "Abyssal Moon Spire" was the truly dangerous part of this Underground Ancient City.
The "Abyssal Corridor," meanwhile, connected the world of Teyvat to the "Abyssal Moon Spire."
This section consisted of eight floors.
Each floor was enormous, like an entire city, and this section lay between the world of Teyvat and the "Abyssal Moon Spire."
That was why it was called a "corridor."
Li Qiuzhi and the others had now arrived on the