Nikki Heat and Derrick Storm, New York Times bestselling
author Richard Castle's most enduring and beloved
characters, team up for the first time to save Nikki's
mother, Cynthia, who has been in hiding (and presumed dead)
for 17 years. Standing in their way is a nefarious group of
Chinese businessmen known as the Shanghai Seven, who have
the resources—and ruthlessness—to stop them.