Girl Genius XXVIII: Dancink! Ve is here for de dancink!

[Kantaki]

OK, did I miss something?

Bang and Green are socializing, under Agatha's eye, here:
https://www.girlgeniusonline.com/com...?date=20201002

Next place I see them, is in the observatory, here:
https://www.girlgeniusonline.com/com...?date=20201019

Did I miss something? Is there a reason they seem to have skipped?

I'm guessing they changed locations when Agatha did. While she visited Tweedle and went back to research those two decided to use the observatory's gym to spar.