Nikki Heat

You've already read Heat Wave, Naked Heat, and Heat Rises, and now, you can get a head start on Richard Castle's fourth novel, Frozen Heat.

Chapters 1 and 2 of Frozen Heat are currently available for download on ABC.com.

In Castle's upcoming installment in the best-selling Nikki Heat series, the detective teams up yet again with journalist Jameson Rook, and together they face an unsolved...

Wanna know when you can (finally) grab the last installment of the Nikki Heat book series?

You’re in luck, Castle Lounge has just dug up info on the fourth Nikki Heat book — which, according to the show, should be the last in the series based on Kate Beckett’s alter-ego — titled “Frozen Heat.”

We don’t know much about the final plot, but we do know...

One thing’s for sure: Richard Castle’s one busy — and talented — dude. To date, the novelist-turned-detective has written four real-life bestsellers, along with a host (read: 20+) of other fictional titles. During Season 1, Episode 9: "Little Girl Lost," we’re told Castle has written 26 bestsellers before the start of the show!

But since no man is an island, Rick...

Castle fans! We're sure this date is already circled on your calendars, but don't forget that Castle: The Complete Third Season and Heat Rises, the third book in Richard Castle's Nikki Heat series, comes out TODAY.

If you somehow forgot to place your pre-orders for either, head over to your local store or go online to Amazon.com!