Spirits Challenge ebook

After all these years it was comforting to believe the alien threat was gone; the terrifying reality is that it never went away. Once again, an horrific and brutal struggle for Earth has begun. Seeking out embedded allies on Earth, the invaders not only returned for conquest… they returned for vengeance. War-weary heroes from history would again stand against impossible odds. Their enemy would not only be intergalactic conquerors but also an evil rival, frantic in gaining alien approval, independent of world governments. The invaders' arrival would foster betrayal, terror, chaos, death, and despair. Panic would usher in the basic instinct to survive. Defeat was negotiable…extinction was final.