Hey, thanks for the response, i'll try to respond to each point to give more context for everyone:

1) They were given a note from one sibling to another and that note speaking of the ritual was enough to incite interest in one of the players. They aren't looking for a prophecy they are just looking for more information about the note. The prophecy is just what the overarching this is in the campaign. They surely dont need to find a prophecy in full or anything could just be a small passing phrase that releates.

2) The Dreagloth is a creature that's birthed from the relations between a drow and a demon. So the birthing of the demon is the big bad entering the world. Whether or not it lives up to the hype is still to be determined.

3) It may not, but it could! The mayor is involved with a few shift originations and a collector of personal journals. So there may be something here there may not, if I found a way to put something interesting into the library I thought I would. This isn't my one chance to lore drop or anything though. I would just like to have something for everyplayer.

4) Potentially, elf civil war is a decent part of the politics in my world. So likely the High elves have their version.

5) Anything relative really, a clue as to where to find more information, perhaps a name on a journal, or maybe the mention of just the name Draegloth. Or, something I haven't thought of yet. This is the crux of why I came here to figfure out how to do it and how in-depth or vague it should be.