Here’s the blurb again, for anyone who missed it before:
A Daring Mission into the Heart of Darkness…
The war against the horrific Theta entities reaches new heights as the Sentient Concord is forced to fight on multiple fronts against both the struggling Earth Federation and the Wolf Empire.
Commander Hrothgar Tebrey is at the forefront of those battles, bringing the fight to the enemy again and again. He is the last hope of humanity, the only person who can consistently stand up to the Thetas and win. But never-ending war takes its toll. Tebrey knows he needs to take the fight to the Thetas if there is to be any hope for the future.
The Thetas think they are invulnerable, but they have a fatal flaw: One of their own has turned back from the darkness, and he knows where to strike against the Thetas to end the war forever.