Chronicles - Acropolis 3000, #2

Ambrose, the most powerful man in the Acropolis Army-AirCorps, Director of Tactical Affairs and Military Operations, wants Demetri and her siblings dead. Sent to the Beta-Quadrant by Master Mercator, the Trinity Hybrids are assigned as soldiers to General Hadrian Craigg. Demetri and Baron assume the identities of a senator's missing children-Lieutenants Skylar and Seth Powell. Pretending to be members of the elite C-1 class proves a challenge, as fighting duels is the only way to defend one's honor at Outpost 2, and many have targeted Demetri.
However, duels are the least of her problems.              Demetri and her siblings soon learn that a hybrid enemy agent is hiding out at Outpost 2, but it's the strange blue lights in the sky and unexplained deaths of fort guards that put the stronghold on high alert. Demetri discovers there are more than mutated animals and plants that live beyond the high walls. Another intelligent species with superior technology has emerged from the fallout of WWIII.
The Trinity Hybrids, now called Echo Platoon, are sent to discover who they are and what they want, but few who enter the jungles of Beta-Q ever return.