With so much going on, Cain, Chen, and Archibald are invited to stay in the palace guest quarters for the evening, along with their entourage.
Packing seems to be going smoothly for the evicted Nobles as far as the reports that have come so far are concerned. Only a few Nobles got home and immediately started loading valuables and gathering troops. With input from the observers sent by the King, Cain is taking care of that using a locked transport circle within the Palace to send Oath Breakers to assassinate the ones trying to steal the confiscated assets and the few who killed their observer.
It's a messy business, so he and Duke Archibald, who is taking the incoming messages from the observers, are pretending to be in a meeting alone, using the office where the circle is hidden. Nobody would question them needing a strategic meeting, and it's better not to publicize that they're killing off former Nobles who didn't fall in line; it might cause another uproar.