nice overall...I think?
The fact the kid will one day become the lady feels weird, specially with it being a magical world where it basically can happen literally, but thought from a metaphorical point of view, she's just changing him from someone broken and almost devoid of self into someone raised to be her succesor. So basically she's giving him something to be, but trying to hide that part of why she does it is for her own benefit and that's what she feels guilty for? For not being able to give him freedom, even as much as she likes him? All that as part of the metaphor.
Also, I guess the old man tried to care for the kids as much as he could, even if he had to made them do stuff that could kill them? IDK that point seems kinda underdeveloped.