Thanks to everyone who has been reading this story! To show my gratitude, I asked marvelous narrator Adelle Yeung create an audio version. You can find it here (replacing the space with a dot com):

soundcloud adelle_yeung/a-problem-like-mary-by-penna-nomen

Or, if it's easier, you can find this story on Archive of Our Own (AO3) and the audio version is embedded in chapter 2.