Lost set of keys with a bright blue cat charm keychain near the grocery store on Main Street, Susanville.

I lost a set of keys in Susanville, probably at the grocery store on Main Street. The keys are attached to a bright blue keychain with a small charm of a cat. I've retraced my steps and asked around, but no luck in finding them. I really need these keys back as they also have a house key on them.