The Hero (Human-Posleen War Series #5)

It's a matter of trust. For thousands of years the Darhel, a warrior species conditioned to be incapable of killing, manipulated and controlled the human race. Then the humans threw off their yoke. Now, for the first time, a Darhel has been assigned to the elite Deep Reconnaissance Team commandos. Trust, in a small unit, is vital. And there was no trust to be had on either side. But when the mission encountered an alien device worth more than a king's ransom, it was the humans who betrayed ...