Author POV,

Emma started walking inside the office and she did not think about Louis at that time whether he would be in or not....

Because at this time the thought of Jenna's future came in her mind which was very important for her...For which even if she had to fight with someone, she would definitely do so.....

If she had to use her precious powers too, she would do that too, but protecting her sister is very important to her....

So she thought that if she had met Louis once before and he had done her no harm at that time too......So that's why she was ready to face...