The Midnight Watch: A Sigma Force Short Story

Tracker: A Short Story Exclusive

Unrestricted Access: New and Classic Short Fiction

Ghost Ship: A Sigma Force Short Story

Subterranean

Excavation

Trust No One: A Thriller

Altar of Eden: A Novel

Ice Hunt

Sandstorm: The first adventure thriller in the Sigma series

Amazonia

The Eye of God

Amazonia

Deep Fathom

Subterranean

The Judas Strain

Map of Bones

Deep Fathom

Ice Hunt