I'm looking for this book but I can't remember the name. It's about a girl who kidnaps a famous tv star robin hood to bring to her dying little
I'm pretty sure it's Just One Wish, by Janette Rallison. You can see the description at Amazon. Unfortunately the library does not own a copy of this particular book, although we have several other books by Janette Rallison; you can see a list here. Just One Wish is not new enough for the library to purchase, but we could borrow it from another library for you via interlibrary loan. The procedure for doing that is here.
I hope this helps!
Librarian I, W. Dale Clark Branch