I am not saying you can or you can’t, but if you could, and I’m not saying you can, download basically any ebook or audiobook you want from “mouse torrent site”. It’s a private tracker, so you do have to apply for membership, but it’s the best place on the net for books.
I grab audiobooks from there, then pipe them straight from qBittorrent into an Audiobookshelf server so me, my family, and my friends can stream them to any device.