I don't really understand it myself. I don't know if it's a force or whatever. I'm sure we all felt it before being transported here. It's taken a bunch of worlds, and it doesn't seem to be limited by time.

There are these creepy monsters called Heartless that are related to it. They literally have no hearts, and some have really freaky powers. Their weaknesses vary. I've been able to shoot some of them with basic arrows.

It takes a certain type of weapon to completely destroy them. I don't know what that is, but anyone with some sort of fighting skill could weaken them. Sometimes they drop items that could be used or sold for munny.