Deep Storm

The Third Gate: A Novel

Full Wolf Moon: A Novel

Chrysalis: A Thriller

The Sacred Vault (Wilde/Chase 6)

The Forgotten Room: A Novel

Kingdom of Bones: A Thriller

The 6th Extinction: A Sigma Force Novel

The Bone Labyrinth: A Sigma Force Novel

Bloodline: A Sigma Force Novel

Sandstorm

Innocent Blood: The Order of the Sanguines Series

The Doomsday Key: A Sigma Force Novel

Map of Bones: A Sigma Force Novel