Ok, problem with chatting has a simple solution - BlackRose adds gags to Merida and Hannah lips and now she can see that job is done at least.
When cleaning girls finish their job, BlackRose don't plan to let them go.
Instead of it, she brought couple of the same black trash bag, that was used to store collected garbage and packs poor Merida and Hannah into it.
Of course BlackRose tightly tie up girls before packing.
And finally three black trash bag are waiting to be moved to dumpster. One with real collected garbage and two with poor cleaning girls, tied and gagged inside their bags.