"Hello, my friends," it says in a rasping voice, charred lips pulling back from fire-blackened teeth in a rictus grin, "I am Karnak Zul."
"Just so," Karnak Zul replies, stale yellow eyes coming to rest on the Aeldari. It is still smiling, a horrible rictus grin from a broken corpse, and small spots of blood are welling up at the corners of its stolen mouth.
the daemon chuckles, a horrible rasping sound like nails through rust. It is still rising, its feet leaving the floor behind to hang weightless in midair, and you can see the withered stick-like limbs are each crowned with manacles of tarnished silver, the chains clattering softly against the deck.
"Hardly a current concern," Zul says with that same horrible smile, and you realise in that moment it doesn't know any better, it's trying to be friendly but doesn't know how, "Master Tahr thought himself clever, and in his pride grew complacent. I squirmed free of those chains some time ago."
"That's my point," Nadia replies, smiling grimly, "You were bound, daemon, and yet you managed to wriggle free… and your first act upon attaining even this slight degree of liberation was to butcher thousands and set us drifting through the void in a broken husk. What kind of bargain could possibly be made on such unsteady grounds?"
"You would me, my friend. Can the deeds of two centuries ago be taken as iron writ today?" the daemon replies, the rictus grin slowly starting to fade from the face of the corpse it is bound to, before gesturing at you with slender, taloned hands, "I have demonstrated my good will already, by guiding your compatriot to a possible threat. Trust in our mutual interests, at least."