Not only that, but Richard Castle's first novel series hero, Derreck Storm, is getting the graphic novel treatment from Marvel Comics.
This television show is getting to be the kind of spin-offs. There's also the Nikki Heat mystery series that has a third hardcover due out this year. There's still a lot of mystery about who the real writer behind the series is. No one is telling.
And to think that this series was once on the bubble, meaning they didn't know if it was coming back. If you haven't seen the show, there's a lot to love.