Secrets in the Art

What brings my dear daughter to Crow's Nest?
Was it due to all the rumors abound of late? Hahaha!
As a 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 from a fallen dynasty of the past.
You can't put a price on it - that's how valuable it is!
There's also a secret hidden within the work itself.
Probably only a handful of people in this world who know about it.
Yours truly included, of course! Hahaha!
The twinkle in your eye betrays your interest, but I must warn you...
The rumors may have already spread too far... if ever they'd reach the ears of certain unsavory folk...
I shudder to think of it. 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 my daughter's trust, and so, I'll sell it for a paltry sum.
You'll never get another 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 could not bear the thought of losing my precious daughter!