Well if Nick is the One, then he probably got a guilty result on Star, and now Star, in a probable panic, countered Nick's claim with info of his own.
Gaia might be the other two. I do not doubt that if this is the case, that Star doesn't know that Gaia is on his team, because pms would probably been exchanged by now. So Star is probably bussing Gaia to save his hide, because he probably knows at this point what she will flip, plus there being no sign of her, and will get town cred in the last day if it comes to that. It also will make Nick a prime suspect as well, and would probably result in his vote off next day.
If Star is the One, then he probably is voting the one he knows is a two, seeing as how it's dire that we, you know, vote one off today and tomorrow, or we lose, and is probably just securing a town victory because the other two showed themselves. I know my bro, and he's a smart guy; this is probably the case if he is the One.
Of course there's option 3
They're both lying through there teeth, either as both town or mafia. If townies, they are playing an extremely risky gambit, as they say. They are both probably sure on their reads, that they are willing to risk that gaia, me, or you might be the actual one to get their read voted off. That or the actual one had this planed with a regular zero and all that jazz.
If there both mafia... then I don't know. They might know that gaia is the One and are taking advantage of her absence to ensure victory... though I obviously don't know why they would both do it... unless for some last minute confusion?
ehh... my BRAIN! It hurts us! T___T
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