Ann Charles - Not in the Deadwood series.
Caroline Shaffer - Probably, depending on which book it was.
This is a great series and I thoroughly enjoy it. I can't wait for the next book to see where the story goes.
There are many reasons why a book might be unavailable.
Sometimes a book goes temporarily out of print - and sometimes no audio version has ever been recorded. Audible wants to give you the most complete selection we can and we'll keep adding series and filling in gaps as quickly as possible.