Adventures in Utopia?

[Stoob]

Stoob: The idea presented is an interesting one... The difficulty is in how the prophet came to her knowledge....

The interesting twist about your campaign is that by playing in before-the-humans-came time is that the players actually KNOW what happens in the future, because they've played in the campaign setting (in the future) before. This is unavoidable.

By having an ememy (this cult prophet) who actually somewhat-accurately predicts the future begs the question...how does the prophet know.

But what if the prophet DOESNT know? What if the prophet is crazy and just totally made up a compelling gloom-and-doom story, and there is no evidence that the prophet actually knows the future at all? It's just by chance that the prophecy sort of reflects the future, that only the players know is actually true. The PCs will be obliged to try to eliminate the cult and the prophet because there is no truth to it, not in the game world at least. The players (as PCs) will explain why the humans weren't attacked by the Selk when the humans first arrived, cause no one ever had any idea that this prophecy was true and the PCs stamped out the cult. The PCs will make history (in a weird way) and do their part to create the campaign setting as it exists...a big and important job!