[Tempest Row Spaceport]

Zee will turn and make a 'follow me' motion with one hand as she begins moving away.

Hopefully Minerva will indeed follow her. Otherwise this will be more difficult.

She would prefer if the bald dude in favor of tyranid supremacy doesn't know that she knows.

And assuming Minerva DOES follow her?

Once they're a comfortable distance away she speaks in a low tone, enough to be heard, but also enough for the ambient noise of the space port to drown out her voice at any real distance.

"All three of those guys are infected by gene-stealers. Or at least I'm about ninety five percent sure it's gene-stealers. I haven't actually ever seen one in person, so I'm making a bit of inference here. If they've got other people on shore leave they might be seeding a gene-stealer cult here. Which would be bad."

Obviously.

No one likes getting their planet eaten by gene-stealers.

"And you're probably wondering how I know. Short answer is psionics."

Not... really. But that's probably close enough. There isn't really an equivalent thing to Zee in the 40k setting. Something with fantastical abilities that's diametrically opposed to the Warp.