From the report Abyss has on the dangers hidden on Earth, he managed to pinpoint the locations of seven Chaos Stage (Tier 12) beings on Earth.
So far, the most dangerous on Earth is at Tier 12, so this means Abyss was able to pinpoint 7 of such monstrous beings.
The report, though only 80% complete, managed to gather the essential information the team needed to handle their missions well.
One of the Chaos Stage beings is the Crocodile King, living in the Stagnated Swamp.
The Stagnated Swamp used to be one of the Tier 9 Forbidden Zones 33 years ago. However, all of a sudden, the beasts living there evacuated, and the danger there was handled.
But while the humans were supposed to reclaim one of the lands and use it to further develop the earth, they didn't dare go there, as the place was filled with poison caused by a battle that had occurred a few years into the apocalypse.
