Man, tracking down audiobooks can be such a hunt sometimes! For 'Back for More,' I’ve had the most luck with Audible—Amazon’s got it locked down tight with their exclusives, and their app is smooth for listening. Scribd’s another solid pick if you’re into subscriptions; they’ve got a rotating catalog, so it might pop up there. Oh, and don’t sleep on Libro.fm if you wanna support indie bookstores—they often match Audible’s titles.
If you’re old-school, check the author’s website directly. Sometimes they drop links to smaller retailers or even DRM-free options. I snagged a copy from Google Play Books once during a sale, so it’s worth peeking there too. Honestly, prices fluctuate like crazy, so I’d bookmark a price tracker like ereaderiq if you’re not in a rush.