It's a nice follow up to the first book in the series and gives you a better handle on the world built by Singh.
Rowr! Okay, this one is my favorite book in the series so far. I've pretty much liked them all, but this one was extra hot!
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.