355 Reaching Dark Sky

Meanwhile, as they exited the tunnel of the Deep Wall Stratum, the frontliners reached the Dark Sky, the third stratum of the Elven Synchronized Intellect Nation (SIN).

"It is clearly below, so why is this place called 'Dark Sky'?"

Gou Dan asked, perplexed as he looked at the stone wall barrier over himself.

The exit from the tunnel which they just left protruded downwards, resembling a stalactite hollowed out at its center. 

Twinkling radiances were spread across the walls too, and a closer look would reveal that those were luminous ferns.

Aside from the one from which they exited, they could also see that there were other stalactites in other areas, meaning that there might be more tunnel entrances into the Dark Sky Stratum from the Deep Wall Stratum.

But that was all their vision could see.