Until It's Undone

There's a strange town on the outskirts. They say that something beyond belief happens there. They say that almost everyone who goes there does not return. They say that the few ones who manage to return never speak about what they saw. They also say that an entity from another world hides in the sewers, but that's irrelevant to this story. They say the sort of things that make you too curious about unknown dangers. The town they speak about is in front of you. Will you live to tell the tale?