I have succumbed to Books Disease and have done nothing but read, but a quick #VisitingSir update:
The boys have been taking it easy, and it's been peaceful. Rudolf seems wariest of Musti who is enormous and Kerv who can be kind of a dick, but has had some careful kitty diplomacy with Pörri.
The sir has also had a very good appetite (he's 16 years old so it's not a given!) and has permitted me head pets and back pets.
All in all, a lot of cats but pretty chill.