By Michael Ausiello and Andy Patrick
October 28, 2010 at 03:36 PM EDT

Image Credit: Amy Graves/; Karen Neal/ABCApparently, Castle is about to get a new queen: I’ve learned exclusively that Laura Prepon has just been tapped to play Natalie Gray, the actress who’s been cast as Nikki Heat in the movie version of our hero’s book Heat Wave.

Go ahead and read that again: I realize it’s a lot to take in.

As you know, the author based Nikki on his actual partner in crime-fighting — and obvious true love — Beckett. So you can well imagine the sparks that will fly when, in essence, a second Beckett, this one bearing a striking resemblance to the hot redhead from That ’70s Show, arrives on the scene early next year.

Actually, as you’re imagining the sparks that will fly, why not discuss them below?