Formic Wars: Burning Earth (2011) #7

The tide of war has turned. Wit O'Toole and Mazer Rackham have scored a major victory against the alien invaders. But hold your applause, citizens--the formics are just getting started...and they're about to unleash their most deadly weapon yet. It's one step forward and three steps back in the fight to save the human race. The first round of the shocking prequel to Ender's Game comes to its exciting conclusion! From bestselling author and science-fiction master Orson Scott Card.