Hymn to Diana
The Ancient Roman poem Catullus wrote a hymn to the moon goddess Diana, which seems an appropriate "gift" to my friend to listen to when she gets out of hospital and maybe one Diana will intercede to help another now she is in a bad way. My Latin is very rusty, and hopefully will not cause too much distress to those friends who are more fluent in it. I'll print off a version to frame and hang on her wall at home as well.
The English translation I found on line, created by Pete Crowther (I don't know anything about him but will keep an eye open for his other work now) and it seems by far the nicest, jolliest translation - much preferable to some of the stuffy Victorian ones.