Description: When earth needs heroes, whom will we call to valor? When flares streaking across the sky herald massive destruction, who will defend us? When mankind’s enemy is beyond our worst imagination, who will be our champions? Will we pick the brightest and the toughest? Or the ones with nothing left to lose? Mankind’s first alien contact tears into Earth: projectiles launched from Jupiter’s moon, Ganymede, vaporize whole cities. Under siege, humanity gambles on one desperate counterstrike. In a spacecraft scavenged from scraps and armed with Vietnam-era weapons, foot soldiers like eighteen-year-old Jason Wander, orphans that no one will miss, must dare man’s first interplanetary voyage and invade Ganymede. They have one chance to attack, one ship to attack with. Their failure is our extinction.

罗伯特·比特纳，美国著名科幻作家。生于美国俄亥俄州的克利夫兰。在伍斯特大学获得地理学学士学位后。任辛辛那提大学国家科学基金会古生物学研究员。后来，他从事过多种工作。甚至包括军事谍报活动。丰富的人生阅历为他的军事科幻小说提供了现实基础。

目前，比特纳住在科罗拉多州。写作之余，他热衷于马拉松、潜水、登山以及滑雪板等多项运动。