(For us the passage would be  like walking through a door but for the rest of the world we might aswell be lost never seen from again. But your pretty close humanity exist as what we left behind aswell as maybe a skeleton here or there maybe a small group living in hide holes desperate not to be found by the monsters. Anyone play Dino crisis two or time splitters? If you have its like those rifts. If not ill try to dig up a pic of it from primevil.)