The Reaper Chronicles Book 1: the Coming Storm

At sixteen years old Aaron does more than anyone else his age. His parents were both killed when he was thirteen, and he's a full time member of the militia of the colony world Aldin, located on the edge of both United Systems and human space. But when a strange new extraterrestrial race invades his home, he'll have to lead the militia in a desperate guerrilla war to keep the invaders from delving any farther into United Systems space. In the midst of this Aaron will learn a shocking secret about who he really is. Can Aaron defend his home and the people he loves, or will they all become tally marks in a war that will claim the lives of billions?