A patent lawyer realizes he knows too much about a new encryption application, an invention that has attracted the attention of powerful forces who want to control this technology – and are willing to kill for it. His only hope for survival is his estranged brother, deep undercover in Istanbul. "Shapiro is a perfect reader for the hard-hitting story... [He] knows just when to hype up pitch and pace, delivering a wallop that lasts after the last body has fallen."—Booklist