The hope that they have legs. That's the biggest fear you always have creating new people. You love them, but then they kind of dissipate. Sometimes you don't get to write them as much as you'd like, like me and Harper Row.

It's one of the worst nightmare situations we could create for a young character, having the people who are supposed to believe in you keep telling you you're nothing.

I got fascinated by the idea that our universe itself is comprised mostly of dark matter and dark energy. Things that we can't perceive at all, and we've only discovered that relatively recently. So it's almost as if our universe is the foam on the ocean of things that we can't see, or know, or perceive, and yet we feel the affects of those things right and left.

I really wanted to make sure that if we set Duke up, that he's set up the right way and he's his own hero for the right reasons.

"The Cursed Wheel," which Declan [Shalvey] is starting here, is the one constant. It's a story in the backups that will go through the whole year and be the one consistent narrative. It anchors the entire [book].

Does it matter how long they were together that night? To lovers, an hour can last a century. But even for lovers, every hour ends.

KGBeast starts chasing our heroes in a big way, and you get the return of an old character from the mythology that I think people will be really excited to see.