Spec-Ops
L. E. Modesitt, Jr.
The Aeronaut's Windlass
Jim Butcher
World Shuffler
Keith Laumer
Lafayette O'Leary (2)
Shadows in Death
J. D. Robb
In Death (51)
Valkyrie 101: How to become a Valkyrie
Arizona Tape
The Afterlife Academy: Valkyrie (1)