It would help to know which country you’re in as you probably got your own online book stores. In Germany for example buecher.de, bol.de, hugendubel.de just to name the big ones all have it.

This is totally not advice but I thought it’s a bit funny and worth sharing: after I recently found out that you can borrow ebooks from your local library with a convenient app I started looking around a bit and it turns out you can sign up online with the Kansas City Public Library without any verification, you just need a madeup name and an existing Kansas City address (just pick a random house on Google Maps). I just checked and they have it both as ebook and audiobook, although there’s a long wait as it seems to be quite popular.
Long story short if you’re not in a hurry then in theory you could read it for free and America pays for it. ;)