I had Zoe in the bedroom for a while with a few good shots of Feliway.

A couple of hours later, she door-darted out.

She saw Oscar from the kitchen. The only difference was that she crouched, let a growl out from her throat, and THEN charged. Usually it's instant attack.

She is back in the bedroom for the afternoon - I have to go out.

Oscar and Cole are still very spooked.

Thanks, everyone - I hope we can find an answer.

Calling the vet in the morning.