The Dragon's Gift changed everything for Fiona, Brand, Justin and Daria. As they continue to discover the power of their essence marks, Fiona leads her friends on a journey towards the north and the fabled Lost Tower of Vedan the Cruel. Along the way, they discover that their simple hike into the Green Hills placed them on a path of great destiny they have yet to fully understand. Meanwhile, Carol Green sets out to find her daughter and deliver the mysterious Sanctuary to her. Her path will lead her towards her own unforeseen destiny. Railan Eldarius discovers it is not so simple to return home and must face the reality that the world is in far worse danger than even he had been willing to believe.