Negotiators
Keith Laumer
Retief (1)
Balancer
Honor Raconteur
Advent Mage Cycle (4)
California Gold
Carole Giorgio
The Return of Rafe MacKade
Nora Roberts
The MacKade Brothers (1)
Under Suspicion
Hannah Jayne
Underworld Detection Agency (3)
Under the Gun
Underworld Detection Agency (4)
Under Attack
Underworld Detection Agency (2)
Under a Spell
Underworld Detection Agency (5)
Under Wraps
Underworld Detection Agency (1)