The Order of the Sanguines Series

Written with Rebecca Cantrell

1. Blood Gospel
2. Innocent Blood
3. Blood Infernal

Sigma Force

1. Sandstorm
2. Map of Bones
3. Black Order
4. The Judas Strain
5. The Last Oracle
6. The Doomsday Key
7. The Devil Colony
8. Bloodline
9. The Eye of God
10. The 6th Extinction
11. Bone Labyrinth
12. The Seventh Plague
13. Demon Crown
14. Crucible
15. The Last Odyssey

Tucker Wayne Series

1. The Kill Switch
2. War Hawk

Jake Ransom

1. Jake Ransom and the Skull King's Shadow
2. Jake Ransom and the Howling Sphinx