Blue Gold: A Kurt Austin Adventure (A Novel from the NUMA Files, Book 2)

Serpent: A Novel from the NUMA Files

Fire Ice (The NUMA Files)

White Death (The NUMA Files)

Lost City (The NUMA Files)

Zero Hour (The NUMA Files)

Devil's Gate (Numa Files, Book 9)

Polar Shift (The NUMA Files)

Medusa (Kurt Austin, Bk 8)

The Navigator (The NUMA Files)

The Storm (The NUMA Files)