Transformers (Del Rey Books)

ONE SMALL STEP FOR MAN... All humankind was watching that day in 1969. And yet only a handful knew the real mission behind America's triumph in the space race: to explore the alien ship that has crashed on the far side of the moon. Decades later, scientists are still struggling to understand the technology found on board--though with the treacherous Decepticons after it, a powerful force must be at stake. The only hope of averting a crisis is to reawaken Sentinel Prime, the long-lost leader of the Autobots--but who knows what else remains in the shadows, hidden from man and machine?