Another book on sale by Mariana Zapata, whose self-pub books I've quite enjoyed. (See
here, and a few posts after, for a discussion of the self-pub thing if you are really interested.)
Luna and the Lie is $0.99 at Kindle US right now, not on sale at Kindle UK, at least as of now.
link:
https://www.amazon.com/dp/B07LBMPK54