Sentinel. The relentlessly thrilling Armored series from the author of The Gray Man, Paperback

The gripping, action-packed second novel in a new series from the #1 New York Times bestselling author of the Gray Man, with a film franchise on its way.

• Publisher: Little, Brown Book Group
• Author(s): Mark Greaney
• Number of pages: 496
• Collection: Armored
• Publication date: 2025
• Dimensions: 127 x 198 x 39
• Cover type: Paperback / softback