"I know," he says and he hopes Eponine can hear the sincerity in his voice. She can't see his shoulder and he's not about to start taking off his jacket to show her now, but he will at some point. He has to, he thinks, after this conversation. To show her he's not just saying things for the sake of saying them. The marks on his shoulder are a tattoo now, a choice he made to darken the scars he put there himself as a child, but if she knows about self harm and the thoughts and feelings that go into it, she'll recognize them for what they once were.

It's not something he's done in years and he hasn't felt the urge, doesn't imagine he ever will again, but Marcus understands better than most might think.

"I do, duck, I can tell you that much," he says. "And I can also tell you unless there's danger to someone's life, I won't go to the other carers with any of what you tell me. They won't know what they're dealing with when it comes to the demon and... well, I might be the better bet in either case. Given that I've lived in one of these places myself."

He considers her question more thoroughly and nods. "In my experience, they tend to be partial to burns far more than cutting," he says. "Curling irons, hair straighteners, even frying pans and the like. You might notice an uptick in someone feeling ill. Needing to be alone. Things like that."