Galaxy goes wherever she wants now. Right now she is relaxing in a cat bed in the living room. I don't know if she's explored the bedroom yet (I haven't seen her in there, anyway). That's "Sparkler's room," maybe!

She and Sparkler are coexisting nicely.. not buddying up but no hostility that I can tell. I still do my best to walk softly around her and approach her slowly. She often lets me pet her around her head and down her side and back. So this is a work in progress, going well!