Jim stopped inside the door, as immovable as a setter at the scent of quail. his eyes were fixed upon della, and there was an expression in them that she could not read, and it terrified her. it was not anger, nor surprise, nor disapproval, nor horror, nor any of the sentiments that she had been prepared for. he simply stared at her fixedly with that peculiar expression on his face.
in this excerpt, jim’s character is developed