Did solution 9 reveal like a jump the shark moment yesterday?

[Jojoya]

It has already been covered that the text is also available outside of the book and that the book is not actually limited edition, but an even more important thing to note is that it is highly unlikely to have been important information at the time it was written, simply a throwaway joke to pad out the long list of trivia about each non-story-important tribe.

I was always half-expecting it to turn out to be a subversion if it ever came up, written so we'd interpret it as a primitive description of a modern city but they actually found something more like Stonehenge inhabited by metallic-scaled dragons.

So where do I go in game to find the information?