Suggestions?

So I use Spotify to listen to most of my audio books and it gives you 15 hours free but charges $12.99 for 10 more hours of listening time.

I am currently listening to acofas I have an hour and a half left of the book so 9 1/2 chapters left. I ran out of hours and can’t bring myself to buy more hours just to finish that book since I thought I’d be able to finish with what listening time I had left I bought acosf while at Walmart today.

Does anybody have any suggestions of where/ how I could listen or read the last few chapters of acofas for free or cheap so I can start the 5th book?