Seven Daughters and Seven Sons is generally a favorite with anyone I respect who's read it. (Well, girls. But not only girls.)

Eugenides is nocturnal, this is established. Since Attolia is in so much jeopardized power, I think she's used to needing to operate at night, too, though not as much as him. And there's the whole sneaking-through-her-room thing which is a trope Twilight warped, but has it own little illicit sparkle anyway. So it's like a chain-reaction, just like everything about their relationship.

Whoa, I think I just struck on something new.