Gracie is chasing Harley around like crazy. She acts like she is playing with him. But she is growling at him? It is a low growl at first I didn't even know she was growling at him.

I kept hearing a low rumbling sound I thought it was coming from outside. Yeah I know what a cat sounds like when they growl. But I've never heard her growl like that. It wasn't really a mean growl like with her ears all back and hissing.

I guess they just need time get use to each other. She is being pretty hateful towards him. She is smacking him around some too.