I love these books so much. The narrator is phenomenal and the story is amazing! The only issue is that the last two chapters of the third book are missing!! It drove me nuts, so I ended up buying the third book (Shielded Sun) separately, just so I could have the whole story. I would say that you can sort of get by without them because the fourth book fills in the blanks, but it’s so much better to hear every detail! I hope Audible fixes this issue soon, for future purchasers. It goes to show how much I love the production that I’m not planning on returning either book, I love it enough to have both!!