I don't know if you've wandered outside yet, but we're in a huge underground cavern of some sort. The entire earth--the walls, the rocks, everything--is called the Old Man. It takes people away, sucking them into the earth. At first it was just something called "The Pillar" and only seemed to happen in one area, but it's everywhere now. It recently just took an entire building.
Sooo, yes. Please be careful when wandering around, don't get caught out at night, and don't listen to voices in your head telling you to rest.