Sarah Matthews is nearing the end of another eventless summer in the small town of Bethany, Oklahoma. Disheartened over the reality that yet another unexciting season is coming to an end, she wishes for an unforgettable adventure to break up the monotony of life. But when mysterious circumstances transport Sarah and her sister, Lily, back in time, she gets more excitement than she bargained for. The girls find themselves trapped in the twelfth century in a place shrouded with mystery and deception. Assassination plots, kidnappings, and tumultuous adventures force Sarah to rely on the Shadow, a masked hero who comes to her aid numerous times. In order to uncover a conspiracy and save those closest to her, Sarah requests help from the Shadow and also from Will, the handsome and intriguing blacksmith she befriends. Sarah is strangely drawn to the excitement that seems to follow the town hero and begins to look forward to their secret encounters. She also finds herself caught in a romance with Will, despite the fact that their equally fiery personalities have a tendency to clash. But Will's past is filled with secrets and pain, and Sarah finds it difficult to break through the walls he has built around him. She knows that in order to make things right with the kingdom and also with Will she will need more time in the forgotten land. But when her life is put on the line, Sarah realizes that she will be permanently stranded in the past if she remains for too long and she vows to find a way back home for her and Lily... or die trying.
