If she turns out to be a monster, then the Master is likely the Sheriff – this is a possible argument for keeping votes on him. If she is the Liar, then Mentu will need to explain himself, and preferably in a way that I have thought about, then we can deal with the Master. That's how it looks based on my table, plus the psychology of these past days. I don't think the other options (Haven, Lizard, Gumer, Reven) are strong enough to try and guess, and they are vulnerable to the sophistry of the Mafia.
Fragment, I would still advise you not to waste your vote, because we are on the verge of losing.
That's all from me.