From amazon.com:

Nikki Heat and Jameson Rook are together again in Richard Castle’s thrilling follow-up to his New York Times bestseller, Heat Wave.

When New York’s most vicious gossip columnist, Cassidy Towne, is found dead, Heat uncovers a gallery of high profile suspects, all with compelling motives for killing the most feared muckraker in Manhattan.

Heat’s murder investigation is complicated by her surprise reunion with superstar magazine journalist Jameson Rook. In the wake of their recent breakup, Nikki would rather not deal with their raw emotional baggage. But the handsome, wise-cracking Pulitzer Prize-winning writer’s personal involvement in the case forces her to team up with Rook anyway. The residue of their unresolved romantic conflict and crackling sexual tension fills the air as Heat and Rook embark on a search for a killer among celebrities and mobsters, singers and hookers, pro athletes and shamed politicians.

This new, explosive case brings on the heat in the glittery world of secrets, cover-ups, and scandals.