This city was surrounded by a circular wall made out of some type of special metal material.
There also seems to be a special rule that prohibits the removal of powerful magical items discovered in the Labyrinth outside the walls. This won't apply to me, since I can place whatever I might discover in my Item Box. Though I don't plan to challenge the Labyrinth in the first place.
As if reading my mind, I was informed that I wouldn't be able to access my Item Box in the labyrinth in the first place.
Since only necessities like food are allowed in, backpacks are extensively checked for a long period of time before entry is given.
For now, we searched for a good place to rest.