( The look Louis gives Dorian is strange and sharp; his eyes are bright with fascination and hunger, and yet he's appalled by those predatory feelings in himself. He wants to feed like that, desperately, satiation without the burden of guilt — and he can't bear wanting it again so soon. Not when he's staring into the eyes of a man he'd just killed. )

I see.

( He sounds a little shaken, trying to get his thoughts under control. )

You are a very powerful immortal indeed, ( he says deferentially. ) We can survive a great deal of injury, but it still takes time and blood to heal, and it is considerably slower here. It's disconcerting that this place can take so much from us.