Board Thread:General Discussion/@comment-25266931-20161228230634/@comment-4010415-20161229032925

One thing we do know is that Lien is also used in Menagerie, that's for sure, so it's not just a kingdoms thing (considering Menagerie is apparently not considered to be a kingdom). We saw Lien in use twice in the episode Menagerie - first when someone bought something at a kiosk in the marketplace, and then a second time when someone put Lien in a child's cup.