The Judas Strain: A Sigma Force Novel

The Doomsday Key: A Sigma Force Novel

Bloodline: A Sigma Force Novel

The Demon Crown: A Sigma Force Novel

The Eye of God: A Sigma Force Novel

The Devil Colony: A Sigma Force Novel

The Last Odyssey: A Thriller

The 6th Extinction: A Sigma Force Novel

Eye for an Eye: A Dewey Andreas Novel

First Strike: A Thriller

Hidden Order: A Thriller

The Last Refuge: A Dewey Andreas Novel

The Athena Project: A Thriller

Independence Day: A Dewey Andreas Novel

Trap the Devil: A Thriller

Power Down

The Bone Labyrinth: A Sigma Force Novel