Harry Potter and the Prisoner of Azkaban question

I can't find the audible edition of Harry Potter and the Prisoner of Azkaban. Surely that's a mistake? Am I doing something wrong? I went through the first five pages of editions, to the point that I got to student guides to the book, and it's hard to imagine no audible edition here. (I also searched for the book title followed by, and then preceded by, "audible," which worked for the first two volumes.