When Captain Kyle Mercer of the Army’s elite Delta Force disappeared from his post in Afghanistan, a video released by his Taliban captors made international headlines. But circumstances were murky: Did Mercer desert before he was captured? Then a second video sent to Mercer’s Army commanders leaves no doubt: The trained assassin and keeper of classified Army intelligence has disappeared.

Army Criminal Investigation Agents Scott Brodie and Maggie Taylor have been separated for five months following their last assignment, a dangerous mission in Venezuela to locate and detain an infamous Army deserter. Now, in Berlin, they are reunited and tasked with investigating the murder of one of their own: CID Special Agent Harry Vance of the 5th MP Battalion, an accomplished counterterrorism agent who had been stationed in western Germany, and whose body was discovered in a city park in the heart of Berlin’s Arab refugee community.

Court Gentry is known as The Gray Man—a legend in the covert realm, moving silently from job to job, accomplishing the impossible, and then fading away. And he always hits his target. But there are forces more lethal than Gentry in the world. And in their eyes, Gentry has just outlived his usefulness. Now, he is going to prove that for him, there's no gray area between killing for a living-and killing to stay alive.

Evan Smoak is a man with skills, resources, and a personal mission to help those with nowhere else to turn. He’s also a man with a dangerous past. Chosen as a child, he was raised and trained as an Orphan, an off-the-books black box program designed to create the perfect deniable intelligence asset: An assassin. Evan was Orphan X - until he broke with the program and used everything he learned to disappear. But now someone is on his tail.

"The Book Case" is a story that features Nelson DeMille's most famous (and successful) character, Detective John Corey, who has appeared in six DeMille novels: Plum Island, The Lion's Game, Night Fall, Wild Fire, and The Lion. In this story, we see John Corey in his early years as an NYPD Detective, before he became involved with the Federal Anti-Terrorist Task Force.