Shattered Earth: an alternate history science fiction novel by Cliff Ball
Approx. 75,420 words.
Published on October 27, 2010.
Advanced humans leave Earth when its threatened by a massive meteor. The remaining humans on Earth fall back into primitiveness. The advanced humans, and a group of aliens involve Earth in an interstellar war. Thousands of years later, the humans of Earth decide to do something about this. Interstellar politics will never be the same again once Earth is done with their revenge.