"[imager on J'nanin, after finding the last symbol] You've done well, my sons. But there is still one task ahead of you. The Linking Book you see here links to an Age called Narayan. It's a very delicate Age, where civilization has emerged in response to the world's imbalances. It's also the first inhabited Age I'm sending you to alone, but don't be afraid. The knowledge you've acquired here will show you the way in. Use it, and see all that Narayan has to offer."
January 1, 1970
https://en.wikiquote.org/wiki/Myst_III%3A_Exile