Thirteen Cities in Magic City’s Catacombs

Fang Ping continued honing his bones and cultivating combat techniques while attending special training classes.

Gradually, a rough impression of the Catacombs began taking shape in his mind.

This impression solidified when the instructor led everyone into Building No. 2 in MCMAU's southern area to take a look at the topographic map.

… 

Building No. 2.

They found themselves in a massive hall measuring several thousand square meters. The only thing it contained was an enormous, very technologically advanced sandbox.

The old professor who was leading the group walked into the hall and chuckled, "Magic City's topographic map of the Catacombs is on the third floor.

"The Catacombs topographic sandbox for Donglin is on the fourth floor and the one for Donghu is on the fifth.

"Currently, MCMAU only has maps of these three areas. The Military Department, on the other hand, has maps for every single one of them.