Phoenix of the Burning Seas (Ever in a Pirate's Eye) by Chloe Garner

Casset lives in the here-and-now. No past and no future, as Katrina famously observed. But that doesn't mean that the past can't rise up and hurt him, particularly when it's someone else's. No one knows much about where Katrina came from, or what she did before she showed up at Castaway with the Flying Phoenix, but the past that she was running away from is about to catch up with her, and it may turn out to be the problem that Casset and the rest of the crew can't overcome. Casset takes on a new role in the crew, trying to manage in her place, while Pix suddenly becomes even scarier than she ever was before. And that's saying something. Get on board quick, the crew of the Flying Phoenix is ready to shove off, and there's a storm brewing on the horizon.