Novel. When Unit Four--a biological soft robot built and stored high above the Jovian atmosphere--is activated for the first time, it's in crisis mode. Aliens are attacking the helium-3 mine it was created to oversee, and now Unit Four's sole purpose is to defend Earth's largest energy resource from the invaders in ship to ship combat.
Item #: 7730071
Published at $16.99 Your Price $5.95 (Save $11.04)