Of course, the next chapter if you do decide to do a nightmare, i think it will be a great idea. Make sure you go into detail, do not rush yourself to write it. Make sure you include how she feels, just so the reader can feel a connection. ex. "She smacked me across the face, i wish i could cry, but i cant. When i do Im only hurt more, i sat back and let her finish her work, wishing i could just end his torture." Etc. That way the reader can relate to her and have a great connection. Making the readers feel involved is a fantastic thing!!