@Morgan first of all, carmen was the first edutainment franchise, really. the oregon trail predated it, but wasn't really a franchise. carmen SPRAWLED across multiple media and a crapton of merch.
she was also an early example of a strong female character in children's media, and one of the first (THE first?) latina main character in a children's show.
Actually, the only thing that wasn't stolen at the Louvre's Apollo Gallery is the Regent Diamond, figure no one would take it because something to do with a curse.
I've also found that the two thieves were leaving for Algeria, thanks of a trace of DNA evidence recovered from a helmet and their past in burglary cases according to the police.