Emergence. Fox Meridian, #5

Emergence: noun. 1. The process of becoming visible after being concealed. 2. The process of coming into existence or prominence. 3. In philosophy, art, and systems theory, a process where complex systems can exhibit properties none of its constituent parts possess. Sometimes, when something emerges, you're better off not knowing. A routine security operation requiring no input from the investigation division turns into a hunt for a malicious hacker when one of the world's most popular musicians is targeted.
Fox Meridian and her team must fly to Japan to keep Nishi Sakura and her girlfriend, Charlie Iberson, safe from a skilled, manipulative man known only as Minotaur. But as organised crime becomes involved and an old enemy resurfaces, the stakes for Fox and everyone around her have never been higher.