"The Lion's Game" is a novel by author Nelson DeMille, featuring the character John Corey, a former NYPD homicide detective. The story revolves around Corey as he investigates a terrorist known as The Lion, who is responsible for a deadly attack on American soil. The narrative combines elements of suspense, action, and humor, showcasing Corey's unique perspective and skills. The book is part of the John Corey series, which includes several other titles that follow Corey's adventures. DeMille's writing style is engaging, often blending serious themes with witty dialogue, making the series popular among thriller enthusiasts.