The Third Frontier War is raging, and all across human-occupied space worlds are burning. Massive fleets struggle for dominance and kilometer-long war ships exchange thermonuclear barrages. Battered in the early years of the war, the Western Alliance is resurgent. The brilliant Admiral Augustus Garret leads the Alliance fleet from victory to victory, taking the war to the very heart of the enemy empires. And on the ground, Colonel Erik Cain, hero of the Marine Corps, leads his crack troops again into combat, seeking the final battle. In the background, the secretive intelligence agencies of the despotic Superpowers plot and scheme, using their own soldiers as pawns in the great game for control of space. But the final battle will be fought in the reddish sands of a backwater world, and the prize will be the staggering secret that has lain hidden in a remote cave for untold centuries. All the Powers struggle for the ultimate victory, but at what cost? The Cost of Victory is the second book in the Crimson Worlds series and the sequel to Marines.