The Great Betrayal!!

The next day, Han and Lily went together to the twelfth floor to pass the test they would be taking there. The twelfth floor is the coldest one out of the beginning floors. It is a land of ice and snow and if Han didn't know that this was no longer Earth, he would've said it looked a lot like city A. He and Lily appeared at the portal of the twelfth floor and they saw that there were some other people here as well. They were moving around with thick coats and furlined jackets and Han realized that they were probably here to take the test as well

There weren't any settlements on this floor and the only thing that looked like a settlement was a large ice castle in the distance that Han could tell had been there for a long time. He saw all the people on that floor moving towards a certain point in the distance. There was a sort of cliff where everyone was climbing down to get to a group on the lower floor.