What is the theme of nevermore by James Patterson?

In James Patterson's "Nevermore," the recurring theme is the dangerous potential of technology and its impact on society. The story revolves around a highly advanced surveillance system known as "Echelon," which allows the government to monitor and gather data on its citizens without their knowledge. This technology is used to track down a serial killer who is targeting members of the government. As the story unfolds, the theme explores how such pervasive surveillance can be a double-edged sword, enabling greater control and protection, but also potentially leading to abuse, manipulation, and compromising of privacy.