This series was discontinued due to issues with the two authors as well as the publishing house. You can't buy the first 4-5 books in the series in print, ebook, or audiobook. An old print copy for one of them can go for like $200 on ebay. So to find the entire audiobook series for such an insanely good price made me take the plunge and buy. I figured even if it didn't work, it was worth the attempt. But the CD came, had everything on it, and I've since converted it to listen to the Books app on my iPhone. Soooooo worth it.