The Sand Wars, Volume 2: Alien Salute/Return Fire/Challenge Met (Sand Wars omnibus)

THE CALL TO ARMS
had come at last. The treachery of the Thraks on the planet Bythia had resulted in the death of Jack Storm's commanding officer, and in the loss of many a fledgling Knight.

Now the Emperor of the Triad Throne had handed Jack command of the Knights and with it the responsibility of overcoming the invading Thraks. But the perils Jack faced were almost overwhelming. Bogie, the sentience within Jack's battle armor was fighting a life-and-death struggle, and it was Jack who might ultimately pay the price for the alien's survival. The Thraks themselves had learned new tactics to turn against the Knights, and even within the Dominion Empire there were many intent on Jack's ruin.

Then a new player appeared in the games of conquest. A mysterious race from beyond the known worlds whose spaceships roved the starways, bringing annihilation to human and Thraks planets alike!