You can download the full audiobook through Audible, which allows for offline listening on compatible MP3 devices using the AudibleSync app.
For a legal MP3 download, you can find the track on Boomplay . 2. Audiobook: Rule of Wolves by Leigh Bardugo Download Rule Wolves mp3
If you are looking for the audio version of the second book in the King of Scars duology, it is available in various formats: You can download the full audiobook through Audible,