Castle, the hit TV series, premiered in the US in March 2009 and has already been renewed for a second series. The main character, Richard Castle, is the bestselling mystery author of the critically acclaimed Derrick Storm novels. As he is paired up with the hardnosed but sexy Detective Kate Beckett, he finds inspiration for Nikki Heat, star of his next bestselling book - Heat Wave. Created in the same vein as the Murder, She Wrote books and television series, Heat Wave is truly a 21st century update to the TV/book crossover genre.