But why is she [i]doing[/i] this?!

That's the one question she needs to answer, she's sure of it. Solve that, and everything else falls into place. There has to be a motive, and that motive will dictate who the target is.

If Mynx wants to stop the journey, then Redana's the target. Redana, with her open heart and with her bonds to the crew and with her desire to cross the rift. Kill her, or poison her, and the journey ends.

But we have two ships! They're not both crossing the rift! If Mynx wants off, off is an option! Redana would...

Well, Redana would be a bit hurt, of course. Would do her best to avoid making it a thing. Would let it happen. But hurt nonetheless.

Revenge, then. Bella did a number on her back on Sahar. Mynx is probably the only person who could track where Bella is, but even with a disguise, Bella's probably too paranoid to let anyone close enough for poison. No habits to exploit, too much risk for a good fight. Stir up chaos...

Table that. Call it a maybe. Even if it's Bella Mynx wants, Bella's about as hard to find as Mynx if she doesn't want to be found.

She dismisses Dolce and Vasilia almost out of hand. Either one would be ridiculously simple to eliminate, simply by taking the form of the other and waiting for the opportune moment. No chaos necessary. Hell, chaos would make things harder, if for no other reason than making them look at each other harder.

Maybe chaos itself is the point. Make enough problems, and somebody has to pay attention to her. Acknowledge her. But if that's the point...

She'd even baked cookies. That stings, somehow, almost as much as the murders. They're still in the meeting room--Alexa hasn't been back yet to check whether they've been touched yet.

The list of leaders is dwindling, at this point. Jil of the lanterns? Potential. And it'd fit, if Mynx wanted to start a war, to assassinate both leaders and point each side at the other. Only slight problem is that Jil's not on the ship. Iskarot? Has some of the same issues Bella with being harder to find, but with none of the motive. Ramses? She'd only be a target by association with the Hermetics, it feels. Maybe the Assistant Secretary, to plunge the Tides into chaos?

And finally... Well, she's not so naive as to think she, herself, might not be a target. She's involved in other groups to at least the same degree as Redana. And while her death wouldn't mean the end of the journey

So, then. Call it probably six possible targets. Three more likely than others--herself, Bella, and Redana. Only one actionable out of that list, apart from herself, is Dany. 

But... Well, her gut says that Dany isn't in immediate danger. Even if she is the ultimate target, she won't get hit until others have died. And she trusts Dany to take care of herself.

So that just leaves Ramses and Iskarot to find and protect.