ABC is releasing a book to help promote the second season of its series “Castle,” the Hollywood Reporter says.

Beginning in August, the network will release the novel “Heat Wave” a chapter per week for 10 weeks on ABC.com while repeats of the first season air on the broadcast side. Hyperion will publish the first ten chapters along with the second half of the novel in full Sept. 29.

“Castle” features Nathan Fillion as best-selling author Richard Castle. “Heat Wave” will be written as a stand-alone mystery but will include some connections to the on-air product.

–Sergio Ibarra