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.
I am hooked, can't wait to read the next one! This series has everything a good apocalyptic series should have! Beans, Bullets, & Bandages!!!
How could it so soon...what wait till Fall '16! No this is cruel and unjust! The book was great and the series is better!