Invasion sparked a mystery, then a nightmare, and finally the courage to take back our planet! Starting on a post-apocalyptic Earth - then into the stars to a lone starbase left by our ancestors. An epic sci-fi saga that spans 4 books and 1,525 pages with creatures, spaceships, aliens & humans who can sometimes do the impossible. 1000 4- & 5-star reviews. "... spins the apocalyptic genre on its head ...keeping readers on their toes!" —Publishers Weekly, Booklife Prize