Unrelenting (Kris Longknife, 13)

The aliens attacking the planetary system of Alwa are an enemy unlike any Admiral Kris Longknife has ever encountered before. She doesn't know who they are, only that they worship a being known as the Enlightened One and are unafraid to sacrifice themselves against her fleet. But Kris faces more than just the fanatical behavior of an alien armada. A saboteur has infiltrated the military's medical facility and unleashed an epidemic that has spread throughout the fleet without warning. Seventy-two career military women are down with something not even the aliens could do to them - including Admiral Kris Longknife....