The first two floors of [beginner's ice magic] were now conquered. Frost reached the middle levels of the monster lair and the monsters and dangers reflected that. Whereas the first two floors contained primarily G and F-rank monsters with only the boss being E-rank. The middle floors contained mainly F and E-rank leaving the last two floors containing mainly E and D-ranks, but this was under normal circumstances. While the monster stampede was looming, things tended to change. D-ranks could enter the middle levels and could become more abundant. There was even a case of a C-rank monster being born during one monster stampede.
When the adventurers returned to the [beginner's ice magic] monster lair they encountered a nasty surprise. Many people died during that time, and it set a precedent, reaffirming the fact that no matter how profitable a monster lair is it's still a monster lair, a place of danger, looking to kill whoever enters.
