I have a theory... nothing to back it up yet but here goes: The clues on the scrolls seem to hint to places ("here you can... etc") - so maybe they hint to where we'll find the pieces of the tablets. This way we don't need to own all the scrolls, we just need to know what their clues are.

So far I'm thinking they lead to different parts of neopia - "here you can look ages into the past" could mean Tyrannia (called prehistoric in the url), "here you can take a cool drink" could be Maraqua (called water) and "here you might never be heard from again" could be the haunted woods.

Regarding the prophecy, it seems chapter 3 of the story refers to it, and I'm guessing it'll be something like "Qasala shall rise again" although I have no idea how to find out or what the exact phrase would be. Doesn't matter (to me) yet, since I can't even find Nuria. According to people's translations I should go to a silver rectangle door with tep over it, but I only have one such door and it's a trap... Also I have the same 4 scrolls in all 3 libraries, so I dunno... I don't seem to be getting much out of the temple

PS (edit): The clues could refer to more specific places too, like games... "here you can build a repository for scrolls" (approx) could mean the game Pyramids, "here you might never be heard from again" could then be the haunted house... But like I said, I have nothing to back it up yet...