This is a good series. The characters and plot are interesting. The preformance is excellent. The reason that I am saying dont waste your credit is this. Audible has presented this as a 6 book series. The indication is that like a lot of other series, the others will be in production at a future date. After a few years, I wrote the autors site. There currently is no plans to put other books in audio form. Audible taught me to verify; are books published, if so wait until they are in audio format before purchase. To me this is far worse then waiting for the author to write next book in a series. In that case what I feel is anticipation. In this case, I feel annoyance and cheated.