Since so many of you are asking, the Audible version of The Sixth Strand will not release in June with the print and ebook editions.
The data I have from my publisher at this time is that Nick Podehl is set to record the book in September. Based on past experience, this should put the release on Audible at some time in December, 2019.
As soon as I have a definite release date, be assured I will let you all know! If you’re signed up for my mailing list, you’ll be sure to get the notification.