To add these to your account, first "buy" the free ebook at Amazon, then click thru to the Audible listing and add that selection to your cart. Make sure that you uncheck the box to use a credit, if you do have a paid membership, then click on Update. Once you are sure that you don't have the box checked and the price is still showing as free, click to complete your order (you'll have to log in and confirm; on the confirmation page, you can double check that no credits are going to be used). Once my order was completed, I was dumped into a page wanting me to install software - if you've used Audible in the past, just ignore that page and go to your library to download or send to your Kindle, as you have always done. You can get that message to go away forever by turning off Software Verification under Account Details.
This is a list of the ones that have been discovered so far, including the 27 titles on Amazon's official list:
Inexpensive ebooks with free audiobooks:
|eBook at Amazon||Free Companion Audiobook|
|Siddhartha [with Biographical Introduction] ($1.75), by Herman Hesse and Hilda Rosner (Translator)||narration by David Cross|
|Heart of Darkness, by Joseph Conrad ($1.42)||narration by Kenneth Branagh|
|Pride and Prejudice, Annotated, by Jane Austen ($6.99; a no longer free version is also linked to the free Audible edition)||narration by Lindsay Duncan|