The tower didn't seem like a regular one, and seems to have been intentionally turned upside down, making it difficult to tell the top from the bottom.
Around it were soldiers in armor carefully spreading their mental energy to carefully excavate the edges, trying to uncover more of the tower and traps.
Gwen, allowed the scenery of the place to disjest in their mind for some time, before speaking calmly to them again.
"Even though it has been almost a year, one thing that has been a mystery is that we don't know if we have been clearing the top floor or the bottom floor.
"Nevertheless, we managed to successfully uncover five floors. Since the structure of the building seems to change after each time it is cleared, as for the layers of the ancestral ground we can only rely on you students to completely uncover them.
"Every floor is a separate level of dimension, and contains a realistic environment."