She's going to be a stunning animal when she's back to 100%. The hardest thing to do with a snake that thin and malnourished is to sit on your hands and NOT try to get them back up to weight quickly.
One small prey item a week is all they can handle to start with.
Several years ago I rescued a pair in a similar situation. And those girls were so hungry that they tracked everything that passed their enclosures and gave off a heat signature.
It was very hard to not feel so sorry for them, and very difficult to not feed them as often as I wanted to.
They both recovered and went to a friend of mine after they were rehabilitated.
Please keep us posted on her progress.
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