Factitious writer Richard Castle has actually released a book. Heat Wave is a tie in book to the TV Show Castle published by Hyperion. Ghostwritten under the name "Richard Castle", it is entirely in character from the dedication to the acknowledgments, although the latter references the principal cast and the show's creators by name. The first half of the novel was released on the ABC website in weekly increments, but it must be purchased to be read in its entirety. Heat Wave was released on September 29, 2009, and debuted at #26 on the New York Times Best Seller list. In its 4th week on the list, Heat Wave broke into the top 10 at #6.