The Arrival — Kaitlyn O'Connor

They were phadrac—genetically engineered to be superior warriors for the E-Ridian Empire—given the task of removing the 'primitive species' in the way of the Empire's colonization ambitions. It never occurred to their creators that they might question the prime directive.This, Taden and his Bi, Syln, thought, was no primitive world and the U-mans were not primitives. And a phadrac warrior did not make war on the weak and helpless. They captured Autumn to save her—in spite of every effort on her part to escape.