Add a new rule, “Forgeries”:-

Any Broker may contact the Collector privately to decry a piece of art as the work of notorious forger Magistrelli, if they believe its image to contain a depiction of a spider.

If the Collector agrees that such a spider is easily and clearly discernable in the artwork’s image when pointed out (such that an uninvolved third party would, if asked what the relevant detail was, be able to recognise it as a spider), the Collector should make a blog post announcing that the art in question is a forgery: upon doing so, if that piece of art is in a Collection or Vault it has its Price reduced to $0 there.

Piece of art from Rounds 5 and earlier may never be revealed as forgeries.