Madness string 43246

Random mermaid
Rivers filled the cracks in the world. I followed every river then, from Rubicon to Kherlen.

In biblical days, the way to atone for your sins was the sacrifice on the altar to God. What people don't remember now is that the altar doesn't get cleaned afterwards. So with every sacrifice, the altar gets bloodier and bloodier. It's basically a reminder of every transgression and you can't go back to the unclean state.