#statistically speaking one of these Chosen Ones are gonna fall in a river and drown or something eventually

[probablybadrpgideas]

Over the course of the game, roll a d20 every so often.

This measures the progress of a different, unmentioned party of adventurers who are on their own quest to stop an unrelated threat to the entire mortal world.

If you get a one they fuck up and die so the world abruptly ends with no warning.