Sixteen-year-old Merelin Lindon always knew there was something different about her family. There were the ethereal glimmers that always showed up in photos of her dad. The way her mom always seemed to know exactly what she was thinking. The nagging feeling that she never quite belonged. To make it all worse, her father disappeared four years ago, and Merelin could never shake the feeling that everyone stopped looking for him much too quickly.

Then one day, out of the blue, she receives a strange medallion that belonged to her missing father, and everything changes. She finds herself cast into another world–a harsh but beautiful world where an ancient civilization stands on the brink of annihilation at the hands of an enemy they have no weapons to fight. Some fear she will be their ruin. Some of them think she will save them all. And one of them makes her imagine she could.

Yatol has been training all his life as a Guardian of the star road, but it has been four years since anyone came across from the world on the other side. Then, without warning, the portal opens and leaves a girl at his feet. She has no knowledge of her role in his world, or the meaning of the object she carries, but Yatol cannot help feeling drawn to her stubborn strength and spirit. And if she is who she says she is, then Yatol has a promise to fulfill.