Rescue Remedy from health food stores I've been told by my friend who does Thumpers, Reiki treatments, are concentrated bottles that need to be mixed with spring water. So many parts of rescue to spring water type of deal.
Just thought I would add that tid bit of info
It really does work when mixed and used properly.

I would separate Rumor and Ripley (if these two are suspects) and confine them in a room or exlarge crate.
Litter box, water, food.
Dont give them full run of the house.

Exlarge dog crates can hold litter box, bed, water and food with room to spare.

Let them calm down and slowly re-enter them into the house.
Kinda like start them out as confined kittens and let them earn their way out to more space.

If you have to consider rehoming anyone, PT'rs sure have come to the rescue here lately. Might ask who can help.