Hopelessly outnumbered by the Millennium Earl's forces and the Noah, the agents of the Balck Order place there hope with Allen Walker.

Four years ago, Court Gentry was betrayed by his handlers in the CIA. Now, as a master assassin known as the Gray Man, he makes his living killing other people. But an old comrade Gentry thought was dead returns to haunt him, asking Gentry to carry out a nearly impossible kidnapping-- and then return the quarry to the very CIA team that turned on him.--Cover, p. [4]

A former CIA master assassin reappears from hiding to take revenge upon a former employee, who is a practiced killer himself.

After five years on the run, Court Gentry is back on the inside at the CIA. But his first mission makes him wish he had stayed on the outs when a pair of Chinese agents tries to take him down in Hong Kong. Normally, the Chinese prefer to stay eyes only on foreign agents. So why are they on such high alert? -- Page 4 of cover. "Mark Greaney, the #1 New York Times bestselling coauthor of Tom Clancy's Jack Ryan novels, delivers another breakneck thriller...

"The Gray Man deals in death with mathematical precision, but this time he may finally find himself on the wrong side of the equation in this blistering thriller from New York Times bestselling author Mark Greaney. Court Gentry's flight on a CIA transport plane is interrupted when a security team brings a hooded man aboard. The mysterious passenger is being transported to England where a joint CIA/MI6 team will interrogate him about a mole in Langley....

"The first agent's disappearance was a puzzle. The second was a mystery. The third was a conspiracy. Intelligence operatives around the world are disappearing. When a missing American agent reappears in Venezuela, Court Gentry, the Gray Man, is dispatched to bring him in. But a team of assassins has other ideas. Court escapes with his life and a vital piece of information. Meanwhile, CIA agent Zoya Zakharova is in Berlin. Her mission: to infiltrate...

"In the latest thrilling novel in the #1 New York Times bestselling Gray Man series, Court Gentry is sent on a mission by a person he doesn't trust to snatch a target he can't stand from the clutches of Russian assassins he can't defeat...and those are the upsides of the job. Alex Velesky is in a world of trouble. He has the key that can unlock the truth behind a web of illicit payments the Russians have spread around the globe. The money is used...