Seventeen-year-old Kenna Marsden has a secret. She's haunted by a violent tragedy she can't explain. Kenna's past has kept people—even her own mother—at a distance for years. Just when she finds a friend who loves her and life begins to improve, she's plunged into a new nightmare: her mom and twin sister are attacked, and the dark powers Kenna has struggled to suppress awaken with a vengeance. On the heels of the assault, Kenna is exiled to a nearby commune, known as Eclipse, to live with a relative she never knew she had. There, she discovers an extraordinary new way of life as she learns who she really is, and the wonders she's capable of.