Card Orson Scott – Ender's Saga #3 _ Xenocide

In Xenocide, the third book in Orson Scott Card's Ender's Game series, the planet Lusitania faces annihilation as the Starways Congress sends a fleet armed with the deadly «Molecular Disruption Device» to destroy it. Home to the alien species Pequeninos, the sentient insect Hive Queen, and humans—including Ender Wiggin and his family—the planet's inhabitants race to find solutions to their existential threats. Meanwhile, the genetically engineered inhabitants of the planet Path grapple with their religious devotion and mental conditioning as they uncover the secrets of their oppression. As the Lusitanians work to neutralize the Descolada virus—vital to the planet's ecosystem but deadly to humans—they also uncover the nature of faster-than-light travel using the mysterious force known as the «Outside.» Through this discovery, they transport the endangered species and themselves to safety, thwarting the Congress's fleet and preserving their world.