Princess Margrethe has been hidden away while rumors of war threaten her kingdom. One gloomy, windswept morning, as she stands in a convent garden overlooking the icy sea, she witnesses a miracle: a glittering mermaid emerging from the waves, a nearly drowned man in her arms. By the time Margrethe reaches the shore, the mermaid has disappeared into the sea. As Margrethe nurses the handsome stranger back to health, she learns that he is not only a prince but also the son of her father’s greatest rival.
Young Tessa is a diminutive girl, far too small for farm work and the object of ridicule by both her own family and the other children in their isolated Midwestern community. Her father seems to believe in nothing beyond his crops, certainly not education for his misfit daughter. When a mysterious, entrancing librarian comes to town, full of fabulous stories, earthy wisdom and potions for the lovelorn, she takes Tessa under her wing, teaching her to read and to believe in herself and a whole new magical world of possibilities opens up.