The Burning Son — T.H. Leatherman

Pilot Mark Martin must flee his home world of Yale when the Erethizon theocracy overwhelms the defenses. His father, an influential senator, is captured. Now Mark must find a way to save his dad before the resistance is crushed, and with it, all hope of ending the occupation. A chance encounter with a smuggler captain may be his only hope. Will they help, or will the crew sell him to the alien invaders?