I know she took the side of her son, even though Jane was only retaliating to her bashing. And that when she screamed they said she was just being a naughty girl. But, if no-one, not even Mrs. Reed, went in tge Red Room at night, for fear if Mr. Reeds ghost, then why would sent Jane back in?
Mrs. Reed was particularly resentful of her husband’s favoritism toward Jane and takes every opportunity to neglect and punish her. Jane resists physically and verbally as the servants Bessie and Miss Abbot lead her to the red-room, named for the color of its drapery and furniture. The red-room has clear associations with death (red as the color of blood, the room's containing a miniature version of the dead Mr. Reed, and Jane's belief that she sees a ghost in it) but is also a symbol of imprisonment. This is only the first time that Jane will be imprisoned in the novel, though her later imprisonments will generally be more metaphorical, particularly in relation to class, gender, and religion. In this case, John is the root cause of Jane's imprisonment and his word is taken above hers, a fact that parallels the gender relations of the male dominated Victorian society. Ironically, however, the three aggressors that maintain Jane’s imprisonment in the red-room are females, and Jane’s one savior, it appears, was her uncle.
http://www.gradesaver.com/jane-eyre/study-guide/summary-volume-i-chapters-1-5
