[Frieda would agree with those assessments (though she can't help but feel that Hanako sometimes forgets that he isn't a ghost anymore, or at least not in the way he was before, which might make him act reckless). As for whether her uncle is dead...]

Yes. He is dead.

[I killed him. I ate him. Mercifully, she doesn't remember the deed, as is standard for new titan inheritors, but there's no pretending it didn't happen, not when she inherited his memories, along with her grandfather's and those of everyone who came before them.]

...

Do you think there's a chance that we might meet other groups on our journey? They can't all travel in succession with the same Ferryman, can they?

[But already, her mind supplies absurd but possible theories to dash that faint hope. What if there are multiple timelines, dimensions, or whatever else layered on top of each other here? What if each group gets sent to their own afterlife, so to speak? What if in this location, the barrier between the afterlives has holes through which we can glimpse each other?

She suppresses a mirthless little laugh. Is she making up ghost stories now, when she's ghost herself?]

Let's tell the others at the party for good measure, but if you have your book with you, it can't hurt to already send them a warning now.