Crystal Tomb (Starfire Angels: Dark Angel Chronicles Book 3)
by Melanie Nilles
The Shirukan aren't the only threat to the Starfire shard Raea bears... An alien enemy has awakened to reclaim the crystal that was theirs, and those last survivors of a war that nearly destroyed Inar'Ahben aren't afraid to kill anyone who stands in their way. Raea is running out of time. If she fails, graduation will be the least of her concerns. She may lose more than the Starfire...