"Mrs Reed, impatient of my now frantic anguish and wild sobs, abruptly thrust me back and locked me back in"
Mrs Reed appears ruthless, as she "abruptly" pushes Jane into the room, locking the door. Bronte's use of descriptive language such as "impatient" and "thrust" highlights Mrs Reed's cruelty as Jane is a child here, and was "frantic" and sobbing wildly.