The Tenth Planet Series by Dean Wesley Smith, Kristine Kathryn Rusch

The exciting first novel in a new series that blends the blockbuster thrills of an alien invasion adventure and state-of-the-art astronomical detail. Mankind has just discovered that a tenth planet exists in the solar system. And soon it will also discover that the planet's hibernating inhabitants emerge every 800 years to harvest a new supply of food from Earth.

Mankind has discovered that a tenth planet exists in the solar system. That planet's hibernating inhabitants emerge every 800 years to stripmine another world for food and resources. This time, that world will be Earth.

2018: COUNTDOWN TO APOCALYPSETwo worlds are locked in mortal conflict. The aliens of the Tenth Planet must harvest Earth's vast resources soon--before their world's elliptical orbit hurls them back into deep space for another 2000 years. If they fail, their species cannot survive the long journey into the void. This is their last chance to avoid extinction... more2018: COUNTDOWN TO APOCALYPSETwo worlds are locked in mortal conflict. The aliens of the Tenth Planet must harvest Earth's vast resources soon--before their world's elliptical orbit hurls them back into deep space for another 2000 years. If they fail, their species cannot survive the long journey into the void. This is their last chance to avoid extinction.On Earth, scientists work frantically to stop the huge alien fleet, but even nuclear weapons have only slowed the attackers' dreadful onslaught. Now the ultimate battle for the fate of Earth--and all human life--draws near. And as more powerful weapons are brought to bear, winning the war may be more devastating than the invasion.A thrilling science fiction saga of epic proportions, THE TENTH PLANET: FINAL ASSAULT delivers high-tech action and pulse-pounding drama that culminate in the explosive finale to a rousing trilogy. less