羅伯特·比特納，美國著名科幻作傢。生於美國俄亥俄州的剋利夫蘭。在伍斯特大學獲得地理學學士學位後。任辛辛那提大學國傢科學基金會古生物學研究員。後來，他從事過多種工作。甚至包括軍事諜報活動。豐富的人生閱曆為他的軍事科幻小說提供瞭現實基礎。

目前，比特納住在科羅拉多州。寫作之餘，他熱衷於馬拉鬆、潛水、登山以及滑雪闆等多項運動。

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.