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.
The two stories were a great listen to, the narrator left a lot to be desired. All the male characters had the same monotony.
Boring, predictable, only a couple sex scenes in the entire book which was way too long. Highly DO NOT recommend.