An Amazon best seller already, the next installation in the Empyrean book series, Onyx Storm, is out today and currently the unabridged audiobook is free, or at least very cheap compared to the physical and Kindle versions, depending on whether you've already used up your Audible trial.
Written by Rebecca Yarros and narrated by Rebecca Soler, Onyx Storm: Empyrean is currently free with an initial Audible trial, or just $0.99 with three months of Audible. That's more than 90% off. If you already have an Audible subscription, you're still able to get the unabridged audiobook for just $36.74, over the proposed retail price of $41.99.
