by arkayn
Or...
The guards were alerted that someone was trying to steal the Jade Statue. Then, after I fail, I find out that there was some gold in the house that I didn't know about before. The guards don't know that I know that - they just know that someone was after the statue, so that's what they're guarding.
It would be kind of annoying if the red treasure in the house had to always be flipped to be the most valuable - seems like you wouldn't even need the treasures to have a red side at all - you just need to know how many elite guards there are.