I've decided to leave this for critique and opinion?

I think that you're moving too fast. I'm very confused. I think that you really need to explain somewhere around the first time Katherine does anything for "master" and explain about how she became a servant, and things like that because it is extremely confusing. I think that you really need to explain about everything, really, and slow it down a whole ton. I like the idea of there being slaves, and having Darklock berries, and a monarchy with a prince and a king ruling and everything. I like it, but everything's really confusing, and you really need to explain and elaborate on everything that happens, because I'm really, really, confused. Edit it, slow your story down a whole lot, add more detail, describe what happens, and explain about what already had happened to Katherine so the readers (like me) are not confused. Good luck! =]