[X] Speak with Goemon. You've been putting this off too long, you need some sort of understanding to work with the man. Bad mood or no, it's good sense.
[X] Speak with Dumas. He's the only one still there you haven't personally spoken with yet, and it might help to get a feel for what sort of man he is.
[X] Speak with Sanson. Even if you're mad at her, you can't deny that Marie might have had some semblance of a point. Maybe talking with Sanson would help you sort that whole mess out.
[X] Wake your sister. Frankly, the idea of having to put things off because Niamh overslept in that stupid bed is already giving you a headache. Making sure she's up can't hurt anything except your mood.