I recently went on a hunt for 'Ordem dos Cavaleiros' myself, and it was quite the adventure. This Brazilian novel isn't as widely available as some international bestsellers, but you can find it on a few key platforms. Amazon's Brazilian site (.com.br) usually stocks it in both physical and Kindle formats. The shipping might take a while if you're outside Brazil, but it's reliable. I also had luck with Estante Virtual, which is like a Brazilian marketplace for used books - great if you want a physical copy at a lower price.
For digital readers, Google Play Books has it in Portuguese. The cover art looks fantastic on tablets. Some specialty bookstores like Livraria Cultura might still have copies if you contact them directly. The publisher's website, Editora Draco, sometimes sells signed editions if you're into collector's items. What's interesting is how this book's availability reflects its cult status - it's not everywhere, but the fans who know where to look can always track it down. The Portuguese fantasy scene is really growing, and 'Ordem dos Cavaleiros' is one of those gems that's worth the extra effort to find.