Count Cain

I finally started reading Count Cain (I'm about 3 volumes in). It's really good but I have a question for anyone who's read it. On Wikipedia it says that at the end Cain hands over the title of Count to his sister... So what happens to Cain then? Does he die? Does he and Riff disappear into the night for some hot man sex? What?

Spoilers plz!