I'm so sorry to hear that Z has not continued to rally, that's worrying.
It's lovely to hear that she's enjoying all her cards.
She has a very special relationship with her niece and it must have been nice for you to meet her.
I can't begin to thank you enough greylady for keeping us in the picture. It's been clear from when you and Z first met, not that long ago, that you and she had a real connection which she valued very highly.
She's lucky to have found such a good friend, and you're close by, fantastic!
I don't really care what's 'mumsnetty', we're the Phalanx, so we do things a bit differently.
So I'm sending not only hugs, but huge cuddles (they last longer) to you for being so lovely. And a 
Don't get any ideas we're soft lurkers, we've still got our closely aligned spears and we is fierce!