The slave quarters are a dark and foul smelling stone room where men are chained shoulder to shoulder against one another until work needs to be done.   There's a large bucket of slop that comes through and the slaves are allowed to feed themselves briefly.
Slave quarters, Inside Tower
prisoner
a grazing milk cow in the background
I am a grazing milk cow of the kingdom's farms. I eat grass most of the day. I know I will be killed for my meat.
Mooo!  Sit still cow I need some milk! Moo! I'm an old cow. Not much milk left in my udders.  Woah! you can speak!!! Yes, I'm very intelligent for my species.  I can see that! sooooooooooo can I have some milk??? You can squeeze my udder to see if there's anything left.  I will fill this bag if possible.... You are so soft.... Do you have any food? I can produce more milk on a full stomach.  I have this bag. Is there anything inside the bag? I can't eat an actual bag, it would give me indigestion.  Ummm yes there is lots of healthy grass.