Capítulo 574: Chapter 115 It feels really quiet here, etc. _1

Annan followed Ingrid and the others, taking the subway away from the Bone-nurturing Ground.

Of course... according to the rules of the Underground City, at this time, the Bone-nurturing Ground was not yet called by that name. Just as the Coal Ash Wasteland at this point in time wasn't called the Coal Ash Wasteland either.

Because of Professor Grey Seti's presence, this area was known as the Grey Tower. It also had the nickname "Tower of Reflection."

That is to say, the Grey Tower was seen as the reflection of the Wizard's Tower from the surface world in the Underworld — and this was essentially praise for Professor Grey Seti's strength and knowledge, comparing him with the Tower Master of the Wizard's Tower.

However, in Annan's perception,

Even if Seti was not quite at the Tower Master's level just yet, he was almost there.

They still had classes in three days, so the three of them did not go very far.