Another small update:

Misty has started to come out a bit and look around. She lets me smoothe her, and rubs her face on things, so I know that she likes me doing this, and that she's also marking her scent on things that are new to her. She has seen Sunny they just hissed at eachother then Misty walked away (Sunny was abover her on the bed) and Xavi and has hissed and growled but not become violent or anything, I think she's really scared of them, they're both interested in her. Xavi is just interested and curious but her growls have put him off going close to her, he's just stared from afar for now.
I'm happy for her to take her time to adjust, all I'm worried about is that she hasn't eaten anything yet.
She arrived Wednesday evening, so I assume she had had breakfast that day, but hasn't eaten anything since. She also hasn't had any water that I've put down. I've put food down, food that came with her, but she hasn't touched it. She has used the litter tray once.
How long is it normal for her to not eat? I'm just very worried in case it makes her ill? I'm most concerned about this and it's worrying me a lot?
Any answers or advice?

Kate