[Another pause, while he fiddles with the quill some more. Okay, so he doesn't really get out much, that's fair... How does Thanatos deal with talking to mortals, he wonders.]

Well, I'm Hypnos! [A beat.] Sleep, actually, and I was never mortal, so just sleep.

[Is that enough? Must mortals ask questions??]

I keep track of the shades when they, you know, arrive. Wow, this is a lot harder to explain to a living mortal than I thought it'd be! Are you just... not going to tell me about yourself?