Following the events of Book 1, Casey's home star system is suddenly thrust into the depths of interstellar war. With Qutar-Rin's armada closing in from one side and the Hyxis invading from the other, there's nowhere left to run. It's all over. And then suddenly it isn't, only to find themselves hundreds of millions of light years away in the blink of an eye. What?! As the mystery surrounding Angelfyre begins to unravel, the two see their very existence redefined in ways they never imagined possible. Casey and Angel quickly come to terms with their new reality, seizing their legendary destiny as they go head-to-head with the invading Hyxis to save the United Systems from certain defeat. And as if things weren't interesting enough, they make another surprising discovery. Angelfyre has a twin sister, with a dark twist.