Secrets in the Art

What brings you to the Crow's Nest?
Was it due to all the rumors abound of late? Hahaha!
As a precious guest of the Crow Merchant Guild,
I have a special deal for you today.
For I only recently purchased quite the surprising piece of art.
It's none other than... a portrait of a fallen dynasty from the past.
You can't put a price on it - that's how valuable it is!
There's also a secret hidden within this very work itself.
Probably only a handful of people in this world who know about it.
Of course, including yours truly, as well! Hahaha!
Anyway... you look rather interested in it, but I must warn you...
The rumors may have already spread too far... if ever they'd reach the ears of certain unsavory folk...
And so, I've decided to only deal with those I can trust.
Its actual value may be in the hundreds of millions, and yet...
It'd be a loss to test relations, and so, I'll sell it for a measly sum.
You'll never get a chance like this. The time has come for you to make a decision!

This piece can be yours, for the paltry sum of Gold Bar 3,000G!
You won't get another chance like this, my dear.

Truth be told, this is actually a "replica" of sorts... but regardless,
if word got out that you have this piece, things could get dangerous for you, real quickly.
Please, keep it in your residence, for your eyes only!
I, too, could not bear the thought of losing my regular patron!