Subterranean
James Rollins
Sandstorm
Sigma Force (1)
Map of Bones
Sigma Force (2)
The Last Oracle
Sigma Force (5)
The Judas Strain
Sigma Force (4)
The Doomsday Key
Sigma Force (6)
The Devil Colony
Sigma Force (7)
Blood Infernal
James Rollins & Rebecca Cantrell
The Order of the Sanguines (3)
Black Order
Sigma Force (3)
Amazonia