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.
Loved the series. Can't wait to find out what happened to Tess. Is she dead?
story was read well and it kept me going all night while drove to brisbane now i need to get book five
A brilliant read and one that was terrific to listen to. I recommend this story for all ages over 12 and even adults.