Gabe's nudging from the back gets him another sidelong glance. So you are sticking with! Quentin's tongue scrubs at his teeth, head tilts side to side as he finds his approach to the explanation. "People who are murdered, or--or who die in accidents, anyone who dies and doesn't want to stay dead gets taken to the castle. To the Duchess. Zlatka." 

It's a decent opening, actually, to a walkthrough of the place. If Joan and Gabe keep a reasonable enough distance between each other, Quentin can talk them through the impermanence of death and the community litigation around it. Crimes of the head and heart lead nicely into the question of monsters, at which point he shows his curse mark (niez, nested in between the bones of his right forearm) and conscientiously doesn't demonstrate the telepathy involved. He explains the Void-touched, yanked from hundreds of different dimensions to be trapped here, searching for the best way to survive and the best way to get out. 

He explains that, for reasons he doesn't have the time (or heart) to spell out, they need to be careful. "We don't all get along," Is the sweet, stern button he puts on it as they approach the massive wall that separates Rubilykskoye from the woods outside, "but we're all in this together. We have to protect each other. All the time, inside these walls and out. 

"So consider cooling it on the scratching and clawing. I dunno."