more ((((hugs))) and prayers for you and your family, Kay. You must all be beside yourselves.
God is watching over Ki. There is no reason to suspect the worst, just think how long Delta was gone. Sherman's sister Tori ran off and was gone for almost two weeks, but finally found her way to a home she'd been in for less than a week. Dogs are very good at taking care of themselves, and Kiara's smart and resourceful. She'll be back.

In the meanwhile, please take care of yourself, too, dear.