i have always loved this book series, this one fills in gaps in plot nicely
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.
Another brilliant book would love to see more of these on Audible - excellent series!
Bujold's books are ones I can re and re-read. Grover Gardner's narration adds to the pleasure