Eighteen-year-old Morrigan has always felt like she didn't belong in small-town Oklahoma where she grew up. But on an outing with her friends to the deep, gem-filled Alabaster caves, Morrigan learns the dark truth about her ancestry. A devastating accident transports grief-stricken Morrigan to Partholon and into the keep of the Sidetha, where she is regarded as the Light Bringer, the Goddess Adsagsona's Chosen One.