The Kindle version of Darkness Within is now available for pre-order on Amazon, with delivery expected on December 13th, priced at $6.99.
(The paperback, for those of you who prefer physical books, is slightly held up in processing, but should also be available shortly.)
This is a companion discussion topic for the original entry at https://eldraeverse.com/2019/12/09/darkness-within-preorders-open