Gray Man

16 titles

1. 1. The Gray Man
2. 2. On Target
3. 3. Ballistic
4. 4. Dead Eye
5. 5. Back Blast
6. 6. Gunmetal Gray
7. 7. Agent in Place
8. 8. Mission Critical
9. 9. One Minute Out
10. 10. Relentless: Gray Man, Book 10
11. 11. Sierra Six
12. 12. Burner
13. 13. The Chaos Agent
14. 14. Midnight Black
15. 15. The Hard Line
16. 16. Dark Union