The Empire of Isher: The Weapon Makers / the Weapon Shops of ...
A. E. Van Vogt
Trial Run
Dick Francis
Sacrifice of Mercy (Cambion Book 5)
Shannon Dermott
A Cambions Series (5)
The Rise of the Terran Empire: Technic Civilization Saga
Poul Anderson
Technic Civilization Saga (3)
Young Legionary
Douglas Hill
Last Legionary (0.50)