The first seven novels in the series, through Driving Heat, were actually written by mystery novelist Tom Straw.

When a copy-cat killer stages the crime scenes right from the pages of his books, he is called in to assist Detective Kate Beckett and her team.

The actual book Heat Wave was written by Tom Straw, and revealed in installments on the Castle show's website.

Heat's boss, the commissioner, assigns Jameson Rook, a reporter, to be attached to her to do research on his article.

Ms. Heat tries to handle her professional work, as well as answer to the call of nature as she falls for her handsome, magnetic shadow.