amazon has broken link can't download book Under Darkness The Darkwing Chronicles Series, Book 5
This particular title is downloadable only via USB, so you would have to physically connect your Kindle to your PC for downloads, rather than download it wirelessly like you can with some titles.
If you haven't done that before, you can get help by going to this Amazon page.
Does this help with your problem? If not, please let us know. If you're getting an error page instead of any download option at all, please copy and paste the text you see on the page itself so we can forward this information to Amazon. Thank you.