Saw the Golden Compass as a recommendation on Amazon and saw each ebook in the series is only $1.99 each for a total of $5.97. Even though I am not invested in the Kindle ecosystem, I found this too good to pass up. Great series even though it says it’s for young adults. Probably a promotion for his new book.
https://www.amazon.com/gp/kindle/…aw_dp_link
Edit: Looks like Audible has each audiobook for $3.99.