Relentless (Gray Man, 10)

The Gray Man's search for missing intelligence agents plunges him deep into a maelstrom of trouble in this entry in the number-one New York Times best-selling series.

With a vital piece of intelligence at stake, Court Gentry, the Gray Man, must navigate a dangerous web of espionage and assassins to uncover the truth behind the disappearances.

Meanwhile, CIA agent Zoya Zakharova is on a mission to infiltrate a private intelligence firm with alarming connections, but as she gets closer to answers, her chances of getting out alive dwindle.

Will Court and Zoya be able to capture the king and bring him to justice, or will they become just another pawn in this deadly game of espionage? Find out in this gripping and action-packed thriller.