Carissa

There's a land rush on exploiting alien tech. Pirates, claim-jumpers, cyborgs, and bureaucrats all must be defeated to keep Borag flying. Corporal Devin Starn is working his way up through the ranks of Red Company. Aboard Borag, a mining ship based out of Mars City, Starn discovers more about the aliens who preceded us. Their ruins and strange technologies deepen the mystery of their ancient downfall.

The enemy spacefleet arrowed toward the armored mountain-nerve center of the Galactic Patrol. The Patrol battle cruisers swerved to meet them, and a miles-long cone of pure energy ravened out at the invaders, destroying whatever it touched.