Oblivion's Light — Raymond L. Weil

Two more years have passed for the Lost Fleets trapped in the Triangulum Galaxy. It's becoming more apparent with each passing day that the Dyson Sphere of the Simulins must be destroyed if Fleet Admiral Jeremy Strong and his people want to survive.

Rear Admiral Kathryn Barnes sets out on a mission of discovery seeking allies against the Simulins. What she finds threatens to increase the conflict between the Lost Fleets and the Simulins to a whole new level. Can she make it safely back to Gaia with her discovery, which could change the entire war in the Lost Fleets favor?

Admiral Race Tolsen is assigned a new mission in the home galaxy. Simulin ships have been detected in Shari space, and the Federation needs to know why. Race is sent to the Shari Empire with the knowledge that if his small task force is discovered it could lead to a new galactic war.