Right Up There in the TOP TOP TOP.
Engaging, fast-paced, fantastical.
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, but only after I'd made them listen to all the other books in the series.