Hello & Welcome to JustAnswer. Do you currently have access to the Kindle? Thanks
Please try the following steps and let me know if it helped recover the book:Step 1
Press the "Home" button, if you are not already on your Kindle's Home screen.
Press "Next Page" until you reach the last page of the Home screen.
Click "Archived Items."
Scroll through the history of deleted books and click the book you want to restore. It will download and open immediately.
Hi. Did it work for you? Thanks