On the storm-wracked colony world of Acheron-9, Sergeant Jax “Rook” Thorne and his squad drop into a battlefield already lost. The mining outpost of Baen’s Reach has fallen to the Othari, an alien enemy that does not simply kill—it harvests, tunes, and transforms. Inside the burning refinery ruins, Rook discovers that the war is no longer about territory or survival alone. The enemy has learned to reach through the very neural systems that make humanity’s elite soldiers powerful. Bound to the living armor known as Aegis-Weave, Rook must lead what remains of his squad through shattered colonies, compromised command structures, and a terrifying alien intelligence that offers freedom at the price of identity. As the Shatter-Fleet advances and humanity’s defenses fracture, one soldier must decide how much of himself he is willing to sacrifice before victory becomes another kind of defeat. STAR CORPS is a fast, cinematic military science fiction novel filled with orbital drops, alien warfare, rogue missions, advanced combat armor, and the brutal cost of becoming the weapon humanity needs.