Nikki High temperature and Derrick Storm, New York Moments bestselling author Richard Castle’s most long lasting and beloved heroes, team up for the very first time to save Nikki’s mom, Cynthia, who has been in concealing (and presumed dead) for 17 years. Standing in their method can be a nefarious band of Chinese businessmen known as the Shanghai Seven, who’ve the resources-and ruthlessness-to stop them.