You know, I don't recall the Mistress being mentioned before but I've read these chapters too far in between to properly remember. Her servant that led Ebernathy to her gave me straight creepy vibes and I thought it weird that the Mistress would have such a servant yet deliver a baby fawn; however, that went and did a 180 when the doe came back as that...abomination. I can see why Ebernathy wet himself (I straight laughed at that) so you know it had to be terrifying. He better not screw up again...
Per usual, nicely done.