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.
Yes I would! It was a really fun listen and I really like the series :) A refresher is always good when new books come out.
What I love most about this story is the perfect example Katie shows of Diversity and the effects of preconceived notions about people.