As the saying goes, "there is no silver here, 320", so the gold box can almost be ruled out. And it says "here", so we can't tell which box it is in! ! So don't think about what the golden box said! !

The silver box says "The jewels are not here". We have to think clearly that "here" here is not what it means, but that there is no jewelry around it, understand? And the gold box says the jewelry is here, which means it's in the silver box and the lead box! !

Finally, the lead box .. I probably don't know what it said, because I don't know what it said .. In fact, I can tell by connecting the words of the gold box and the silver box. The gold box is the beginning, and the lead box will explain. ..

So, I think it is in a silver box! !

Maybe my answer is not so comprehensive, but I tried my best. ..

If there is a Q in the building, +my 50 1704790. ..

At that time, our door will be full of chatting! ! Hmm. How interesting ..