Nine days and still getting the message:
Pending Audio Review
Submitted on 21 Jun 2021 GMT-04:00

BUT... I just looked at the Amazon page and it is live!
https://www.amazon.com/Night-Callers-Terrifying-Peculiar-Tales/dp/B096CW2J7R

tldr; Stats still say nothing is happening but they actually ok'd my book in 9 days!

(It sounds so distorted unless you turn the volume way down, on my system. Is that normal?)