What's the Name of That Book??? discussion

I always forget the author and name of this book but used to just google "Painted Man" but now there's a book with that name...

The one I want is about a healer woman going to visit her sister that is kidnapped by a gang of painted men because one of them is injured. She hangs out in a cave with them and heals him but of course they have a connection. Later on he is captured and put in a prison and she has to try to rescue him... Thanks.

Son of the Shadows?

Oh my god, Thank you!!!