Battle for Earth by Hammer Trollkin

EARTH HAS BEEN INVADED by alien forces with overwhelming technological superiority. But we are an amazing people, well-practiced in the art of war, holding a few technological advantages of our own. SHOCKWAVE is a fitting name for the elite special forces team that is our best hope to overcome the invaders and the dark powers that stand behind them. YA flair with plenty of Sci-Fi frosted with fantasy. All for FREE! Come and explore the worlds of Hammer Trollkin in the Shockwave series.